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I agree completely with your explanation why is worthless to put fancy headers on your (gasoline powered) car, BUT a high performance exhaust manifold works well, very well in big Diesel engines. Friend of mine gain 70-80 hp and 350-400lb/ft of torque on his Cat C 15 engine, plus his fuel mileage was Improved by 10-15%.So, in some cases and for some engines and applications high performance manifolds are very effective and efficient way to make your life easier (as a truck driver). Thanks for sharing your experience with us!I've learned a lot from you! Keep doing it!👍🍻
Yep! Scotty drives like a ninety year old man. 200HP is probably TOO MUCH for him. Don't even think of bringing him your car for performance. Stock only.
@@Chriskelly19067 If you're building your cars engine and it has efi you'll need a tune regardless. You can either wrap your headers or heat shield everything around them for relatively low cost. So this video only applies to a small, small portion of people that don't do proper research before hand. Headers on a stock engine are only rational in you're slowly building your car and want to build the engine later down the line. If you even know what long tube headers are, chances are you're not completely naive when it comes to building an engine. And if you're building your engine it would be absolutely ludicrous to put your factory manifolds and exhaust system back on.
Ryan Frank the only thing headers do is to help extracting exhausts from the cylinder and helps in decreasing workload to remove them. After the headers has helped remove the exhaust gases you have more cylinder space for more clean air, and some vacuum to help get that air in there. What is needed then is slight bit more fuel and some timing settings that the ECU in most cases can handle, not perfectly but it can. If you want to get the most out of headers, install better cams and tune the car for optimal horsepower during certain loads, with this you can gain som mpg if the timing is set right and you are running high octane fuel.
@@Bok2022stSome states *cough California cough* do emissions testing/smog testing, every year along with the yearly vehicle inspection. If you don't know what smog testing is, good, you don't live in one of those places that does that. You're better off.
Damn near everything I’ve ever learned from the old timers at my shop or read up on from many different sources are contradicted by Scotty. I think he makes these videos just to get people fired up lol
CammedCuda I love when he claims that headers only give power in the high rpm range. There are many different flow characteristics than can increase torque, high end power, midrange pull. I just don't like that he is sooo biased. But he is a smart guy
CammedCuda when he says you need a dyno and a 5-gas analyzer to tune your car. Seems like he's talking out of his range of knowledge. Also claims people put there headers on after they mount the turbo, because everyone knows exactly where there turbo headers will mount up to and have to do absolutely no plumbing. Tuning is tuning, just because you haven't used a uego gauge and a laptop to adjust your a/f trims doesn't mean it's any harder than turning a flat head Scotty.
Scotty's head would probably explode if you brought him a set of TRD headers engineered by Toyota to go on the car. He wouldn't know if they are horrible or the best thing ever since they are an official Toyota product. Kaboom!
A customer brings a Chrysler 2.7l Sebring to Scotty and asks what work should they get done on it. Scotty pulls out a rocket launcher and blows up the heap of junk.
@@hserieshooligan1997 , No issues , for now bc when it starts you'd have to renew the whole set up... here mostly the issue is about long durability and not some years but long years , if you're a guy that likes this sort of stuff... then it doesn't matter, this is a tech channel for old people 😝...
@@scottykilmer hey scotty i have a 13 Honda civic hybrid it has 80k miles on it i got it when it only had 28k are they any good? Should i keep it or sale it before i have to spend a fortune fixing it? I haven't had any problem so far.
@@manperformance9253 Catless = Brainless. It's illegal AND you're polluting the air for EVERYONE. The people you're trying to impress must be quite ignorant, or blindingly gullible.
@HexagramMan, All aftermarket header manufacturers use dynometer data to market their exhaust products. Many products are compared by independent test facillities as well. Thus, the information is easily available to anyone willing to look at it. Exhaust scavaging is a complex matter that most do not fully comprehend. However, one thing is certain; if a vehicle owner installs a quality namebrand exhaust header that has been designed specifically for their vehicle, and for the RPM range intended, an increase in power output will be realized. That said, it should also be noted that the remaining factory components will then pose a "restriction" to the potential benefits that are offered by exhaust upgrades. Thus, the normal course of vehicle modification for the average car enthusiast, is to upgrade system components in stages; as time and budget factors permit. However, to make the broad and erroneous assertion that an exhaust header offers zero performance benefits, without additional component modifications is simply inaccurate. It would be better stated: "Relatively small power gains will be realized by modifying individual, isolated components. Whereas, multiple system mods that compliment the flow characteristics of the complete system is the key to obtaining the most gains from ones' vehicle." I think what you meant to say is: "To install a header alone may provide a meager 5% increase. However, to expect that increase to be 20 or 30% is stupid."
No, isn't it because he cares about people and likes to give them some wise advice on how to live in our reality instead of the delusion of our crazy untamed mind machine? 😆 Keep it real friends
Modern cars already have a header design from the factory. A lot of times made from cast iron. The old log type exhaust manifolds were quite restrictive but cheap to manufacture. Scotty’s wrong about headers only being effective for high end power. There are small diameter tube headers as well as pipe length choices to the collector to improve low and mid range performance. Also, the ecm can compensate in most cases when an aftermarket header is put on that only changes the flow characteristics on a minor level. Heat can be suppressed by wrapping headers with heat tape or using a ceramic coated header. For performance, it’s better anyway. A header is more effective if you keep the heat inside. Using the right header and exhaust is one of the cheapest performance mods that can yield the biggest gains without tearing into the engine. This is assuming the factory exhaust is restrictive.
I've done extensive flow-bench tests on heads with headers attached and have used that data to match each tube to each port for the best flow throughout the valve travel. It amazes me how much can be gained and where you can get it. Now, yes, he is correct about reprogramming the fuel and timing map to match the new exhaust flow, but not completely. A lot can be gained with small tweaks without a re-map, a lot can be gained in terms of low to midrange torque by redesigning your exhaust without sacrificing anything, a lot can be gained by feeding them cooler air, and guess what? Most newer performance engines come with factory stainless headers and cold air intakes as-is. To be more in depth, modern ecm's are entirely self tuning to a point. If you don't freak them out by doing too much, they will correct themselves up to a certain point. Scotty, I appreciate your knowledge and experience, and enjoy watching. But man, dial back the fanaticism a little, I think it put some folks on the defensive.
Yes i agree at some point, the manufacturer has to deal with mass production costs and processes, goverment and environmental rules, etc, etc. And enthusiasts will modify their car for perfecting it, of course at extra costs, its a hobby. Would you share your car tuning knowledge and experience in your channel? I have change my header and yes it perform better n more efficient for daily use. Modifying car isnt that terrifying. But i still need more knowledge especially at exhaust design choice for my automatic transmission car
Amen! -And in any case, a remap is small fry compared to the money people are paying for their upgrade components. A remap is cheaper than a complete carb resetting & tune-up was back in the day.
YES! Thank you! " To be more in depth, modern ecm's are entirely self tuning to a point." that part right there... I think he went kind of hard on people calling them "stupid" repeatedly and he can't even put factual information in his video. This is a narrow minded, biased video, that he was probably paid by the same people that said loud exhaust is "intimidating", to make. I think somebody should que The Rock at the end of this video...
@@jaymoar3561 Who says cars can't be fun? Sure, you can chose to have a boring car and use it to get to A to B but, there are some people out there that want to have a fun car that they can install mods onto it to make it a little more then just for transportation.
I've installed headers on 3 different vehicles and they improved performance and gas mileage each time. No car had to be tuned to have them work either. They worked immediately without a tune.
My '68 Cortina GT had headers from the factory -- so there was no "Mileage Increase". Heavily modified FORD 460 cu.ins. -- no headers -- ported the intake and exhaust ports on the heads, and match-ported the ceramic-coated exhaust manifolds. Better flow without the underhood furnace temps that you get with the long-tube headers. Desert Racer -- Long tube headers with straight pipe all the way back -- roomy engine compartment gave a plenty of air circulation and kept underhood temps way down.
@@SlikLizrd well sure, in heavily modified vehicles you won’t notice any mileage gains… since it’s heavily modified your obviously not casually driving around right? And switching from headers to headers…. Well it’s pretty simple to see why that didn’t net you much gains anywhere…. Also all that porting when you could’ve just spent the extra $100 on a set of ceramic coated headers which would drastically reduce under hood temps, hell you can touch them after you shut the car off in about 10 minutes or so
@@crimsonlight4205 It's all good, Red -- We obviously have a difference of opinion regarding the value of long-tube headers on a street-driven vehicle. Incidentally -- headers need to be port-matched, just like regular manifolds.
@@SlikLizrd I’m just sayin, if your trying get all you can get out of a car then it’s worth it for some ceramic headers, but like you said if it’s mostly street driven hell, the way you did it is perfect. Headers have much better flow than factory manifolds (on most cars) so even port matching the manifold doesn’t help much since it’s extremely restrictive. Did you have the ceramic coat done by someone or did you do it yourself? If you did it yourself where’d you get it from? I’m looking to coat a set of headers on my boat but I’d rather do it myself than find a shop 3 hours away ( I live in the middle of nowhere) and haven’t decided on what to use.
With these new electronically controlled engines fooling with the exhaust isn't the best of ideas. Not like the old days when you could play with your car and not screw up too bad... miss those days!
@@imxploring somewhat true; it isn't for the casual person who wants to throw on parts he/she likes the idea of. If someone is going to do it, don't half-step. Get any modification that alters the air/fuel ratio (i.e. more than a drop-in air filter) tuned properly.
@@imxploring being one of the first things people do now is get a programmer and custom tune. all you have to do is let the tuner know what you changed and he will take your data logs and adjust it accordingly. now we get to laugh at YOU and scott for talking about something thats obviously out of your scope of knowledge
@@williambuttlicker9890 Not looking to argue about what can and can't be done on your car to increase performance. The real issue just comes down to how much cash you have to spend on increasing the power of your engine. For most of us (including the audience that these videos are geared towards... your backyard mechanic.... not a Nascar racing team) going into custom programming and high performance computer upgrades is far beyond what these videos are directed towards. The point made in this video is that simple mechanical bolt ons (headers) on modern cars is not a good idea. Of course if (like yourself) you have deep pockets and can afford all the other modifications and tuning that would then be required... sure... go for it. But with such resources and knowledge why would you start your project with a stock engine and start having to remove and replace part when you could be building your high performance engine from the ground up?
Anything to reduce carbon and airflow restriction to an engine , most cars ecu will relearn the engine flow and adjust according, but u can also do a remap to be accurate
That’s every manufacturer. Simple bolt ons and a tune. It’s completely normal. I’m sort of perplexed by Scott’s take on this. In almost every case you end up with a car having improved drivability as well. Chill out Scott.
dissomeboolshiet how's your day yeah he’s definitely a little overboard thinking ab intakes and exhaust stuff but I think the ecu will balance everything just fine
The ECU's learning tables should be able to cope with a 10% change in airflow, just need to give it time to re-learn trim tables after the modifications. That's the same reason why modern engines that spring a new air leak run poorly for a short while, then run "normally" once the ECU catches up with the leak, run poorly again when the worsening leak(s) exceed the ECU's adjustment range and still run poorly after the leaks are fixed until the ECU is reset or is given enough time to re-learn its post-fix trims.
The thing is, all the parameters the ECU can adjust to compensate for these things each have limits to how far up and down they can adjust. So sure while it might compensate now, when the engine gets a bit older or even other things like fluctuations in fuel quality, oil quality, air quality it will end up also having to compensate for them but if its already maxed out or nearly maxed out a setting to compensate for the change in airflow it's got no room to compensate for those other things.
Teardown Dan Or else the ECU just reverts to pre-set parameters, so that the engine runs rich, has poor gas mileage and loses power, rather than ‘self adjusting’.
@Matthew Stone a header will do something on a stock engine it all depends on the engine my engine in my car with intake headers avd exhaust you can gain anywhere from 15 to 30 whp depending the header and intake
@Matthew Stone headers do move than be less restrictive 😂 do you know what exhaust gas scavenging is 🤔 because that's one of the main benefits of headers and one of the things they design it to do best
@Matthew Stone with stock o2 sensor it will still gain hp you might need to install a o2 fouler on the second o2 the one that was for the cat but that's it, and like I said a headers does more than just flow better the main gains are from proper exhaust scavenging
Aren't headers like one of the first mods most people do. Like Cai, cat back, headers and tune. That's like the standard must do mods. Even people that dont race their cars do these UPGRADES
How about a nice set of road-grade radial tires, made by a reputable company? They get better fuel economy than Bias plies, they're a tad safer due to the internal belt structure, and they sure as hell look cool if you have the correct profile for your vehicle, as well as tasteful rims.
@@Spaceman2484 Nah, my car has thirteen year old radials and it's just fine if you drive like you have some sense for one time in your life. Up hills in the rain is kind of sketchy, but usually feathering the hell out of the throttle keeps the tire (non-posi) from spinning. Besides, who cares about wet handling? A person with more than two brain cells and four minutes driving slows down when it's wet anyways. I drive the thing rain or shine and it does just fine. Hell, even in the winter it does fine. High idle slurps fuel like a uni kid slurps beer, but what are you gonna do?
Like he said....back in the 50, 60,70's and 1980... yes - headers were a good thing. If you have an early muscle car - it might be a good thing to do, still! But remember, most of those old engines were N/A - naturally aspirated, If you have a car with turbos or super chargers...the real horsepower comes from install a bigger power adder, now if you need headers to install the bigger turbo ... then why pay for the hears twice? Listen to what Scotty said...headers - by themself - are wasted money on the "newer cars" ... meaning anything made after 1990'somethings - to 2000's... until you change some other "expensive" parts and upgrade the ECU...computers and change the program tune to match. Note: the Internet was only getting started since 1995. There was not such thing as You tube. If you wanted to know "stuff" you had to read a book. If you could find one that was worth reading. Fuel injection was still mechanical, there were no MAF, MAP no open source computer controls and no one was making the bigger injectors, fuel pumps or knew how to design return style fuel systems ... that came later, much later...much, much, later! However, the old Foxbody mustangs were the beginning of factory installed tubular headers, which they put on the early 5.0 overhead valve engines. They were not full length headers - but they were tubular headers. The Japanese, and other smaller engines started putting them on their 4-cylinder cars - because they are cheaper to make. There ain't much "cheap" horsepower in newer car engines any more. Last I heard - figure about $35 - $40 (with newer cars, maybe even $80, $90 or $100) per horsepower is what it'll cost to hop up/modify newer engines. If you need someone else to install the parts "for you"...then figure shop time will start at $60 - $100+ per hour... based on where you live and what you need installed. If its dealer installed...bring your own grease... 'cause it'll be even more painful! Newer engines don't leave a lot of "cheap" horsepower on the table any more. The best you can expect (from a 4-cylinder engine) is maybe an extra 5 or 10 horsepower, by changing headers, removing the cats and putting on a $500 - $1000 exhaust system. Now you can make a hella' lot more noise - but no mater what "they say", more noise is not equal to a bunch more horsepower... at least - not until you change other things too.
both of them? i must have done something wrong. i did that all my power went only to the rear left, the rear right wheel got like 5 hp. i knew that mechanic was feeding me bullshit when he said that was normal.
GraveUypo - I found 4 pk of special anti-slip valve stem caps that puts equal HP to the rear wheels. Even if only 1 side originally had power. Pretty amazing. O'Reilly's had them on sale for 98¢ + tax.
Make sure you replace your blinker fluid when you do. All tho I think mr. John Lennon lookalike in the video will give you plenty of reasons why not to change your blinker fluid.
Hell man, it's cold already. How cold do you want it? Say you don't want to eat a half gallon at a time? Buy those single servings and when you want more, drive 60 miles to get another. Scotty logic.
@@user-ge2qn6gp4o yes on fuel injection you do if you don't it robs power I've done it before. The computer can only compensate for what parameters are programmed into the computer if it exceeds the parameters it will detune the engine
That's a real nice way to honor your Father -- NOT !! Removing those Cats tells us that you don't care if WE ALL choke on the air that you're polluting. FOAD !!
I’ve never had problems with how my cars run after putting headers on them. I’ve honestly had them run better. I also got a flash tune on my mustang and the headers helped even more with the tune it also sounded much better with a lower rumble
Without tune tho they’re kinda doing more harm than good. they have too much airflow and start popping then could cause misfire from the air to fuel ratio being off.
Scotty, I put stainless steel shorty headers on my 1999 Chevy Tahoe 5 years ago and not one issue ever. Gas mpg went from 14mpg city to 17mpg and highway 19mpg to 24mpg. Power on top-end is way better. The cast iron Chevy manifolds are restrictive. The exhaust system was left the same.
What engine do you have on the Tahoe. And what brand of headers do you have. I have a 95 c1500 with shorties. Yet they are a pain just for the spark plug replacement.
@@armandomendoza3167 I have a 96 c1500 .. i want to put some shorty headers as well, it's only a 4.3 v6 though. Do you recommend the headers or is it to much problems ??
In I did cold air intake and full free flow exhaust on a ls7 motor and with no tuning done it gained about 39 hp and it was at 3500 rpm that's about mid rpm u car at about 50 miles a hour sits around 2 k so a Lil push and boom ur at mid power
They made basicly indestructible tires out of hemp in the early 1900 but buried the patent because they would run for pretty much ever without wear; also google or youtube tom ogles 1970 galaxie he got killed and his patent buried as well
Who says you can't take a catalytic converter off a car? I bypassed one in my Honda after it got stolen. I live in Washington and we don't have emissions testing anymore. So yeah
I agree Scotty! But you can buy a tuner and adjust the air and fuel mixture yourself if you decide to put one on. I slapped long tube headers in my mustang GT. Kept throwing a code the right bank was running lean, so a simple 150 dollar tuner and I could adjust it to run correctly. 100,000 miles later it's still running strong 💪
Sounds exactly like what my dad told me when I was 15 and wanted headers for my 4x4. I did it anyways and I still do it today and I’m 32 now. It’s like a habit. I think I’m getting old now though because even though I still put them on, I curse the damn things to hell every time I gotta change the plugs. Not to mention all the hassle you have to go through with re-tightening the flange and collector bolts constantly, putting fiberglass sleeves on your plug wires, and even having to run those stupid expensive short plugs which I find really aren’t much shorter than normal plugs. I’ve actually come to regret putting them on my 96 vortec this year, damn things keep springing leaks like an old garden hose. If the manifolds weren’t cracked, I’d have just left it stock.
@@moorefab8192 I'm 42. I told my kid not to do it. Just take it from an, "Ol man", words of advice. Lord knows, that's exactly what my Dad said. I know he will do what he wants, and will say it to my Grandkids.
Longer exhaust headers will create a better scavenging effect at higher rpm, creating more power in higher rpm, short header will create ideal scavenging at lower rpm. You have to decide on where on the rev range you want the power.
@@johnclark3067 no because that's not how life works. For example, "Seatbelts save lives" is a common phrase, however some people wearing their seatbelts during crashes still die. So maybe I should rephrase my original statement as "loud pipes help save lives by making people more aware of your presence" but I'll stick to "loud pipes save lives" for brevity's sake.
Will start with modern fuel injected cars have a computer that has AFR learning by to match a predetermined AFR table programmed into the ECM. It learns this by reading the sensors from the MAF/MAP, knock, Engine Speed Sensor, and AFR sensor. It then adjust fueling for the extra air flow due to the extra exhaust flow. The beauty of the modern ECM. Second. Headers and exhaust are a supporting mod that are normally done first because they don't require a tune, but best performance would be seen by one. Third. The popping sound is from pair valves or EGR not being removed.
Dane Carpenter -- I have a 2017 Chevy express 3500 cutaway box van with a 6.0 motor. It has to downshift to go up hills if i’m driving under 65-70mph. Will exhaust modifications help with this? I don’t care about the downshifting per se, I just want better gas mileage. 3,000 miles per week turns into a really big fuel expense.
Scotty: today’s auto manufacturers cut corners and their engines are unreliable garbage Also Scotty: don’t try to make the engine work better, factory is fine.
He's 100% right, any aftermarket add ons defeat the original design.but us car guys and gals like to drive something different than everyone else...lol
The thing is that sometimes the original design is crap. Many manufacturers just put some headers not because they have the best performance but because are cheapest to produce.
autobuff65 well no, there is a reason why engineers did not design your modern car with exhaust headers. Modern cars aré computer contolled And any modifications as such could mess things up. The only cars that benefit greatly from headers aré The older non computer controlled ones like The súper cars of The 60 And early 70s. People call them muscle cars now but they were actually called super cars back then.
My 1972 442 W30 Clone feels profiled after seeing this. This is almost like a butt chewing speech I got from my Dad when I bought a 396 Camaro in 1981. The only thing missing is the yelling about the ticket gettin' 60 series tires I stuffed under the back...Also I live in a Free State where one has to never have an emissions inspection.
1 Exhaust manifolds and their bolts break all the time. 2 Catalytic converters are a fire hazard in rural areas. 3 headers can be set up to enhance power and torque in specific rpm ranges when set up with the right cam shaft and tune. 4 tuning by computer is infinitely easier than guessing which fuel jet to install in a carburetor. 5 exhaust manifolds are restrictive on purpose so engine temperatures will climb faster because cold engines put off more raw fuel and carbon emissions. 6 less restrictive headers don’t run as hot if you use the right thermostat, and offer better fuel economy than stock manifolds. People love the rich sound of a well tuned engine!
About the rich sound, hell yeah! Open headers on an old 60° Ford V4 (They used them in a few Saabs) is a sound you'll not forget. Much less any V8 in existence sounds like the apocalypse when properly tuned with a nice performance exhaust, bigger injectors, and forced induction!
..."4. tuning by computer is infinitely easier than guessing which fuel jet to install in a carburetor. '.... ....If someone is really, just swappin' carb jets - by guessin'...then he shouldn't be under the hood... 'cause,even it he lucks up and gets it right...he probably will be too confused to know when to stop. 'Cause, after the jets are right - the next step is to adjust the timing...again.
@@dangeristh33 the average "Dyno tune" shop today.... can't handle anything with a carburetor - or anything which can't be done using a computer interface. If his dyno is being pulled on a trailer... he can't help you with anything running a carburetor. What you need is some "gray haired or No haired" old school tuner (or his son) - who learned it by screwing up. Not out of a book or over the internet. Just sayin...
ernest tibbs he was saying that fuel injected cars controlled by a computer would have no point in having headers installed but with a tune like you’re saying the headers would gain power and run right
I put a header on my 93 civic, my car sounds factory, its at 1.3 million km and you cant tell its modified, my gas mileage is perfect and the car isnuntuned, unlike other manufacturers 1990s Honda ECUs know how to compensate.
About the cat. Removing them is pretty much against the law. All because of emission laws, now about headers, the more airflow means more go naturally and if you want better gas mileage with that you have to remap
Thats the thing. Its a supportive modification. Alone it doesn't do much. Put put that with an entire exhaust set up, and an intake setup and tune it correctly. You will see gains in power. And no, most manifolds now a days are not made to flow better, they have to keep in mind manufacturing costs, noise levels, and many other factors. Exhaust flow is not their main concern.
Another thing to mention is the upstream o2 sensor is often placed on a single pipe. The ecm will only see combustion readings for that cylinder as oposed to that bank when the o2 sensor is located where the pipes meet. Fuel trims will only react to that cylinder as oposed to that bank.
@Paul Dana When I was a kid in the 50s we tried to avoid fire since it was nearly always a screwed up carb backfiring into your face. My Malibu Sport would toodle along at 120 with a nice light coming from underneath. I avoided a rich condition like the plague since that's a good way to wash out your rings. I don't do anything automotively just for the hell of it. I spent nearly every day from the time I was 12 perfecting 4 wheel drifting. I had lots of racing driver heroes but Jim Hall was the ultimate with his various iterations of the Chaparral.
My lots Scotty haters out there. So Scotty, serious question, the Ram 1500 5.7 Hemi stock cast iron exhaust manifolds warp, break off bolts, and leak at around 60k or so. Is there no alternative to replacing them with crappy stock parts that will also warp in another 60k?
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More vids on cheap aftermarket parts and poor mods please!
Lol love the common sense part! Love u Scotty!
I agree completely with your explanation why is worthless to put fancy headers on your (gasoline powered) car, BUT a high performance exhaust manifold works well, very well in big Diesel engines.
Friend of mine gain 70-80 hp and 350-400lb/ft of torque on his Cat C 15 engine, plus his fuel mileage was Improved by 10-15%.So, in some cases and for some engines and applications high performance manifolds are very effective and efficient way to make your life easier (as a truck driver).
Thanks for sharing your experience with us!I've learned a lot from you!
Keep doing it!👍🍻
Make a video on how to install bolt studs, and what tools to use..
Thanks for the video. Can I suggest putting tiny cross fades on each of your audio cuts to avoid pops and clicks
Scotty's intro be like:
"Rev up your engines!"
and then he'll proceed to tell you why revving your engine is bad
Scotty is a tool.
Hilarious
Funny but Scotty also said to drive at high RPMs sometimes in order to clear out carbon buildup.
That's why I drive my Civic sedan in the redline
@@sonofagun5305 it's a joke bru
@@AudreysKitchen did he seriously bring up the italian tune-up myth?! xD
Scottys channel in a nutshell:
1. Dont ever ever ever do anything at all to any car ever
2. Buy a celica
For a daily diver , best to be kept them stock and lubed up.
🤣🤣🤣
Yep! That sums it up pretty well😆
@@JayAR_YT not really, you can put bolt on mods on your Daily, and with a simple street tune it will run better and be as reliable as before
😂😂😂😂😂
1) Don't listen to Scotty
2) Install headers, exhaust, downpipe, intake, tune, turbo, re-tune & enjoy
Arlequin finally someone normal 😪
Then rebuild after breaking, that's the Motto. 😁👍
@@eduardodiaz5762 if it breaks. He also forgot injectors blow off valve wastegate fuel pump .
My M52b28 held 700bhp fine stock bottom. End
And re tune re tune re tune er tneu rt unee nr tuee ee rtnu
Yep! Scotty drives like a ninety year old man. 200HP is probably TOO MUCH for him.
Don't even think of bringing him your car for performance. Stock only.
Thanks Scottie. I ended up removing my exhaust headers and while it runs a little louder now, I'm sure the engine is running much healthier!
😂
Just straight out the heads nice. Love the light show at 6000 ripems
Scotty says-
“Why use toilet paper when you can just use your bare hand?! Besides, you’re gonna wash them anyways!”
Hahahaha LoL 😂😂😂 Too much ;o; LoL 😂 😂 😂 too much
🤣🤣🤣🤣🤣 omg I’m dying bro
🤣😅🤣😅
Yoo chill lol 😂
I won't shake your hand my friend
REV UP YOUR CHOKED ENGINES WITH MINIMAL EXHAUST FLOW
Theyre still tuned for that.... the point is you need a tune if you do bolt ons.
@@Chriskelly19067 If you're building your cars engine and it has efi you'll need a tune regardless. You can either wrap your headers or heat shield everything around them for relatively low cost. So this video only applies to a small, small portion of people that don't do proper research before hand. Headers on a stock engine are only rational in you're slowly building your car and want to build the engine later down the line. If you even know what long tube headers are, chances are you're not completely naive when it comes to building an engine. And if you're building your engine it would be absolutely ludicrous to put your factory manifolds and exhaust system back on.
Ryan Frank the only thing headers do is to help extracting exhausts from the cylinder and helps in decreasing workload to remove them. After the headers has helped remove the exhaust gases you have more cylinder space for more clean air, and some vacuum to help get that air in there. What is needed then is slight bit more fuel and some timing settings that the ECU in most cases can handle, not perfectly but it can. If you want to get the most out of headers, install better cams and tune the car for optimal horsepower during certain loads, with this you can gain som mpg if the timing is set right and you are running high octane fuel.
@@FineW_TurboM111 I'm well aware of precisely how headers work. Thanks for informing me though.
Bruh.
Catback & headerback exhaust systems DO exist, you know...
Scotty: " dont put air in your tires its going to stretch the rubber...."
lmao, right? But you forgot the "Shaking hands in face as talks*
😂😂😂😂😂
Scottys next video: why not to buy a car
Also: why you shouldn't put gas in your car or use clean oil......ok maybe that's going too far😂
Ctfu 🤣🤣🤣🤣
Scotty - “You cant take the catalytic converters off a car!”
Me - watch me
Already have brother all good
😂😂
*unless you do it before/after you get it smogged* 😂
@@raidzeromatt smogged ?
@@Bok2022stSome states *cough California cough* do emissions testing/smog testing, every year along with the yearly vehicle inspection. If you don't know what smog testing is, good, you don't live in one of those places that does that. You're better off.
I swear to god, everything I come up with to do to my car, Scotty pops up on RUclips.
THESOOTYHILUX ; Scotty doesn’t know.... ooooo... oooo Scotty doesn’t know, don’t tell Scotty
FACTS LMFAOOOO
Exhaust,turbo,etc
Lol
Dwl lol
There's this old man across the street, he keeps shouting about cars and stuff to a camera...
LOL! We avoid going past THAT house.... 😂
Daniel Sykes He's got a house, but lives in the cargo area of his car he's parked in his drive.
Haha--I'd love to be Scotty's neighbor, but my wife would probably divorce me for hanging out with him and talking about cars all the time!
@@jeffzabriskie5209 Me too, I'd love to hear his stories he daren't put on RUclips 😆
Best comment on a Scotty video, ever.
So you don't want me to increase my engines air flow but yet you continually tell me to rev it up..
😂😂😂😂😂😂😂😂😂
Hahahahahahahahahahaha 😂😂😂😂
I said the same thing 😂
L O L
Got eem
“Rev up your engine”
Don’t do it with headers, it is too loud lol
“Do not rev up your engine anymore”
Me: Starts my car
Scotty: *Uploads video*
“Why starting your car is BAD!”
I fucken died🤣😂
So the moral of the story is: everything Scotty says...do the opposite 😃👌👍
“iT wEaRs yOuR sTaRteR aNd eVeNtUaLly yOu’lL NeEd a nEw OnE!!”
*Scotty pointing at car keys*
DON'T! ->
Technically an engine running is bad for the engine 😂😂
Me: hmm what mods can I install in my car
Scotty Kilmer: No
Lmao
Lol
Yeah, thats why i left the mechanics business.
It was killing my passion for modifying cars, as it seems it has done to scotty.
Toyota
Next up: 5 good reasons you shouldn’t drive your car
Next up:
"Why not to drive your car"
Lmao
Or why not to buy a car
Hubert M why gas is bad for your car
I think Scotty is anti car
Next up also. Why you shouldn’t buy one of them Tesla’s and run them open headers
Damn near everything I’ve ever learned from the old timers at my shop or read up on from many different sources are contradicted by Scotty. I think he makes these videos just to get people fired up lol
yeah, that's how he makes money on youtube. sadly it makes people too scared of doing ANYTHING to their car
Rev up your illegal headers!
Only if you live in Commiefornia
I do and I got headers on my truck
Yea!!!
Lol
Metroid Mayhem 😂
Scotty is like the parent that wants you to get something reliable and economical
He's just telling the truth!
@@danieldagenais7945 not really
Lmfao
Just get a Toyota and be done with it.
@@inse728 wym
I bought some headers for my Tesla. It sounds sweet
Dose it rumble like a subaru?
aint nobody sicker in my fiskar vroom vroom ho
Don't forget to get a loud exhaust and turbo. Plus a bigger fuel pump to increase fuel capacity for your electric vehicle.
Stevie Wonder 🤣
Next step, nitrous!
Scotty: You can't remove your stock cats!
*Aftermarket cats go brrrrr*
exactly! and tons of aftermarket cats are 50-state legal.
I think Kooks presented some high flow green cats at sema that are 50 states legal now
Wait you guys put cats back on
Next up: don’t change your oil because it costs money!
Yeah this little man says some Stupid Stuff .
Jesse Freeman Power steering fluid and Steering pump fluid? You sound like an expert.
CammedCuda I love when he claims that headers only give power in the high rpm range. There are many different flow characteristics than can increase torque, high end power, midrange pull. I just don't like that he is sooo biased. But he is a smart guy
Jesse Freeman Just picking my guy
CammedCuda when he says you need a dyno and a 5-gas analyzer to tune your car. Seems like he's talking out of his range of knowledge. Also claims people put there headers on after they mount the turbo, because everyone knows exactly where there turbo headers will mount up to and have to do absolutely no plumbing. Tuning is tuning, just because you haven't used a uego gauge and a laptop to adjust your a/f trims doesn't mean it's any harder than turning a flat head Scotty.
Imagine going to Scotty for a simple header install & he gives you this long 5.5 minute anti header rant before saying no. Lol
Welcome to the new age...ecu tune!
@@zains3417 do they make those for toyota celicas?
@@FirstnameLastname-pe5ib actually yes they do.
@@zains3417 r/woosh
Scotty's head would probably explode if you brought him a set of TRD headers engineered by Toyota to go on the car. He wouldn't know if they are horrible or the best thing ever since they are an official Toyota product. Kaboom!
A customer brings a Chrysler 2.7l Sebring to Scotty and asks what work should they get done on it.
Scotty pulls out a rocket launcher and blows up the heap of junk.
He won't have to do that to a 2.7 Chrysler it will do it to itself.
Thanks for making my day lol
That's the right thing to do...😎
So true! Whenever a customer calls me and says the have a sebring my response is always "I'm sorry"
Bahaha dude I nearly died from laughter great comment😂
Imagine having a pre catalytic converter O2 sensor that can tune the engine based off or air fuel ratios in the exhaust
Yeah imagine that.... imagine the computer doing the job that it was built for... that'll be awesome to see... Lmao 😝
Oh...is that why nearly every header has o2 ports?
I have headers and a straight through catback with an O2 sensor stock ECU runs perfect sounds great no issues
@@hserieshooligan1997 , No issues , for now bc when it starts you'd have to renew the whole set up... here mostly the issue is about long durability and not some years but long years , if you're a guy that likes this sort of stuff... then it doesn't matter, this is a tech channel for old people 😝...
@@hserieshooligan1997 no check engine lights for o2 sensors?
This dude doesn’t want you to do any mods to your car. Like damn every time I look up it’s why not to do this to your car. Give us a break damn
Detroit Made that’s because those mods are not for everyday driving
hes a mechanic that wants to save you money dawg
He explicitly says it was a good idea for older cars with carbs but not modern cars.
Cars come factory without mods for a reason
Lol
“Why not to touch your car!”
only if it wants you to
I have a car that has never broken down Scotty... It’s because I do not use it. Is that OK?
You got to ask for consent first
And if you plan to touch it, make sure to get a full disclosure agreement
"Why not to drive your car"
Ol scottys got an excuse to not use any aftermarket upgrade lmao
I'm cheap what do you expect
That’s Scotty 👍🏻👍🏻👍🏻
Scotty Kilmer me too🙋🏾♂️😂
Too late. Put JBA headers on 99 Sierra long ago. About 18 years ago.
@@scottykilmer hey scotty i have a 13 Honda civic hybrid it has 80k miles on it i got it when it only had 28k are they any good? Should i keep it or sale it before i have to spend a fortune fixing it? I haven't had any problem so far.
he makes a lotta good points for most newbies. ppl usually want headers before they rly need em
I’m still buying headers next week idgaf
Howzit goin' ?
Bought them like an hour ago
Just installed my catless downpipe
@@manperformance9253 Catless = Brainless. It's illegal AND you're polluting the air for EVERYONE.
The people you're trying to impress must be quite ignorant, or blindingly gullible.
Me too💥
In summary:
Headers increase power output.
Got it. Thanks Scotty.
@HexagramMan,
All aftermarket header manufacturers use dynometer data to market their exhaust products. Many products are compared by independent test facillities as well. Thus, the information is easily available to anyone willing to look at it. Exhaust scavaging is a complex matter that most do not fully comprehend. However, one thing is certain; if a vehicle owner installs a quality namebrand exhaust header that has been designed specifically for their vehicle, and for the RPM range intended, an increase in power output will be realized.
That said, it should also be noted that the remaining factory components will then pose a "restriction" to the potential benefits that are offered by exhaust upgrades. Thus, the normal course of vehicle modification for the average car enthusiast, is to upgrade system components in stages; as time and budget factors permit.
However, to make the broad and erroneous assertion that an exhaust header offers zero performance benefits, without additional component modifications is simply inaccurate.
It would be better stated:
"Relatively small power gains will be realized by modifying individual, isolated components. Whereas, multiple system mods that compliment the flow characteristics of the complete system is the key to obtaining the most gains from ones' vehicle."
I think what you meant to say is:
"To install a header alone may provide a meager 5% increase. However, to expect that increase to be 20 or 30% is stupid."
Many headers reduce low end torque in exchange for higher power output...
And increase mpg, sound better, look better, are corrosion free when new, and usually easier to remove than OEM...
Depends on the engine.
marshalllhiepler dynometer data huh? u obviously know what your talkong about your almost as smart as scotty rev up your booze and vicodin kilmer
Scotty is just tired of hearing all the cars and trucks with open headers pass by his house
jorge contreras hahaha
Who isnt...
Who the hell isn't?!
😂😂
No, isn't it because he cares about people and likes to give them some wise advice on how to live in our reality instead of the delusion of our crazy untamed mind machine? 😆
Keep it real friends
Modern cars already have a header design from the factory. A lot of times made from cast iron. The old log type exhaust manifolds were quite restrictive but cheap to manufacture. Scotty’s wrong about headers only being effective for high end power. There are small diameter tube headers as well as pipe length choices to the collector to improve low and mid range performance. Also, the ecm can compensate in most cases when an aftermarket header is put on that only changes the flow characteristics on a minor level. Heat can be suppressed by wrapping headers with heat tape or using a ceramic coated header. For performance, it’s better anyway. A header is more effective if you keep the heat inside. Using the right header and exhaust is one of the cheapest performance mods that can yield the biggest gains without tearing into the engine. This is assuming the factory exhaust is restrictive.
Nearly everything he said about headers was wrong. Scotty is not a car guy. He’s a cheapskate.
Very well said my good sir!
“You can’t take your cats off your car” MF watch me.
Hunter Juelz what’s cats😂😂😂
Already did on my 350Z in Florida you can blast your straight piped car and the cops don’t care
Hold my beer, Scotty.
Took cats off my SS Camaro car ran way better and faster.
😂😂😂💯💯
That's it I'm putting headers on my 2019 Prius
The ones from Summit Racing are the best.
you can't put headers on your car.. you can only put a header on
Ew. I hope you got something better than a prius
Itr 1244 lol
You'll get better fuel economy since it's flowing better.
“Why not to use tires”
that's a future episode, after they come out with magnetic levitating cars
Bad idea to use tires if you are driving on the streets with them if it's raining or snowing, it's fatal.
@@scottykilmer they wouldnt make them the same as a 94 celica
@@carljohnson4996 I HAVE tham on my 91 Celica. The 94 should get the upgrade soon
pretty sure he's just joking around
Whenever I am feeling optimistic about working on my ol hot rod ,
I come to Scott's channel for buzz kill!
I've done extensive flow-bench tests on heads with headers attached and have used that data to match each tube to each port for the best flow throughout the valve travel. It amazes me how much can be gained and where you can get it. Now, yes, he is correct about reprogramming the fuel and timing map to match the new exhaust flow, but not completely. A lot can be gained with small tweaks without a re-map, a lot can be gained in terms of low to midrange torque by redesigning your exhaust without sacrificing anything, a lot can be gained by feeding them cooler air, and guess what? Most newer performance engines come with factory stainless headers and cold air intakes as-is. To be more in depth, modern ecm's are entirely self tuning to a point. If you don't freak them out by doing too much, they will correct themselves up to a certain point. Scotty, I appreciate your knowledge and experience, and enjoy watching. But man, dial back the fanaticism a little, I think it put some folks on the defensive.
Yes i agree at some point, the manufacturer has to deal with mass production costs and processes, goverment and environmental rules, etc, etc. And enthusiasts will modify their car for perfecting it, of course at extra costs, its a hobby. Would you share your car tuning knowledge and experience in your channel?
I have change my header and yes it perform better n more efficient for daily use. Modifying car isnt that terrifying.
But i still need more knowledge especially at exhaust design choice for my automatic transmission car
Amen!
-And in any case, a remap is small fry compared to the money people are paying for their upgrade components. A remap is cheaper than a complete carb resetting & tune-up was back in the day.
Step 1: install a turbo
Step 2: put on some headers
@@hcr32slider Step 1: over simplified a pretty tough challenge
Step 69: *Headers*
YES! Thank you! " To be more in depth, modern ecm's are entirely self tuning to a point." that part right there... I think he went kind of hard on people calling them "stupid" repeatedly and he can't even put factual information in his video. This is a narrow minded, biased video, that he was probably paid by the same people that said loud exhaust is "intimidating", to make. I think somebody should que The Rock at the end of this video...
Next Up:
Why You Shouldn't Have Fun With Your Car
Hahahaha
Cars are meant for transportation not for fun.
@@jaymoar3561 Who says cars can't be fun? Sure, you can chose to have a boring car and use it to get to A to B but, there are some people out there that want to have a fun car that they can install mods onto it to make it a little more then just for transportation.
Carba 99 k guys I was just trolling. Pshh
Next up from Scotty. "Do NOT Drive Your Car: It's Bad for the Engine!" 😁
100% Truth
😂 hahahaha
Scotty logic at it's finest. 😅🤣😂
hahaha
Also bad to let it sit but what are you going to do ??
I've installed headers on 3 different vehicles and they improved performance and gas mileage each time. No car had to be tuned to have them work either. They worked immediately without a tune.
My '68 Cortina GT had headers from the factory -- so there was no "Mileage Increase".
Heavily modified FORD 460 cu.ins. -- no headers -- ported the intake and exhaust ports on the heads, and match-ported the ceramic-coated exhaust manifolds. Better flow without the underhood furnace temps that you get with the long-tube headers.
Desert Racer -- Long tube headers with straight pipe all the way back -- roomy engine compartment gave a plenty of air circulation and kept underhood temps way down.
@@SlikLizrd the hp gains and mileage gains has everything to do with how restrictive the stock manifold was to begin with.
@@SlikLizrd well sure, in heavily modified vehicles you won’t notice any mileage gains… since it’s heavily modified your obviously not casually driving around right? And switching from headers to headers…. Well it’s pretty simple to see why that didn’t net you much gains anywhere…. Also all that porting when you could’ve just spent the extra $100 on a set of ceramic coated headers which would drastically reduce under hood temps, hell you can touch them after you shut the car off in about 10 minutes or so
@@crimsonlight4205 It's all good, Red --
We obviously have a difference of opinion regarding the value of long-tube headers on a street-driven vehicle.
Incidentally -- headers need to be port-matched, just like regular manifolds.
@@SlikLizrd I’m just sayin, if your trying get all you can get out of a car then it’s worth it for some ceramic headers, but like you said if it’s mostly street driven hell, the way you did it is perfect. Headers have much better flow than factory manifolds (on most cars) so even port matching the manifold doesn’t help much since it’s extremely restrictive. Did you have the ceramic coat done by someone or did you do it yourself? If you did it yourself where’d you get it from? I’m looking to coat a set of headers on my boat but I’d rather do it myself than find a shop 3 hours away ( I live in the middle of nowhere) and haven’t decided on what to use.
That reminds me, I need to paint flames on my Honda.
Lol
If it’s not a Toyota Celica then it’s not worth buying god Scotty is a joke lol
Bro, I did that to a 75 Chevy Luv truck I had and beat a corvette by like 10 car lengths, I couldn't believe the difference
I hear flames add 19.38MPH on the top end!
That trick only works if you change your muffler bearings to the superior aftermarket hard-chromed bronze ones.
*WHY NOT TO HAVE A CAR IN THE FIRST PLACE*
700 LBS RIPPED!!! Yes take the bus
it seems cheaper to me in the long run lol
WHAT DO YOU THINK ABOUT THAT DALE ?
@@LiquidSm0ke IM DOWN HERE SWEATING BUCKETS, WHILE YOU'RE IN YOUR COOKIE CUTTER CLIMATE CONTROLLED TRUCK.
700 LBS RIPPED!!! Dale is probably In his submarine!
Scotty I respect you, I love your videos. But I disagree with most of this video.
With these new electronically controlled engines fooling with the exhaust isn't the best of ideas. Not like the old days when you could play with your car and not screw up too bad... miss those days!
@@imxploring somewhat true; it isn't for the casual person who wants to throw on parts he/she likes the idea of. If someone is going to do it, don't half-step. Get any modification that alters the air/fuel ratio (i.e. more than a drop-in air filter) tuned properly.
@@imxploring only if it's tuned like he says in the description...
@@imxploring being one of the first things people do now is get a programmer and custom tune. all you have to do is let the tuner know what you changed and he will take your data logs and adjust it accordingly. now we get to laugh at YOU and scott for talking about something thats obviously out of your scope of knowledge
@@williambuttlicker9890 Not looking to argue about what can and can't be done on your car to increase performance. The real issue just comes down to how much cash you have to spend on increasing the power of your engine. For most of us (including the audience that these videos are geared towards... your backyard mechanic.... not a Nascar racing team) going into custom programming and high performance computer upgrades is far beyond what these videos are directed towards. The point made in this video is that simple mechanical bolt ons (headers) on modern cars is not a good idea. Of course if (like yourself) you have deep pockets and can afford all the other modifications and tuning that would then be required... sure... go for it. But with such resources and knowledge why would you start your project with a stock engine and start having to remove and replace part when you could be building your high performance engine from the ground up?
Anything to reduce carbon and airflow restriction to an engine , most cars ecu will relearn the engine flow and adjust according, but u can also do a remap to be accurate
“People only do headers after they build a engine”
Subaru owners : hold my vape
Lol. Jesus....
Brooooo🤣🤣🤣
That’s every manufacturer. Simple bolt ons and a tune. It’s completely normal. I’m sort of perplexed by Scott’s take on this. In almost every case you end up with a car having improved drivability as well. Chill out Scott.
dissomeboolshiet how's your day yeah he’s definitely a little overboard thinking ab intakes and exhaust stuff but I think the ecu will balance everything just fine
Also Subaru owners: also hold my oil top up
The ECU's learning tables should be able to cope with a 10% change in airflow, just need to give it time to re-learn trim tables after the modifications. That's the same reason why modern engines that spring a new air leak run poorly for a short while, then run "normally" once the ECU catches up with the leak, run poorly again when the worsening leak(s) exceed the ECU's adjustment range and still run poorly after the leaks are fixed until the ECU is reset or is given enough time to re-learn its post-fix trims.
The thing is, all the parameters the ECU can adjust to compensate for these things each have limits to how far up and down they can adjust. So sure while it might compensate now, when the engine gets a bit older or even other things like fluctuations in fuel quality, oil quality, air quality it will end up also having to compensate for them but if its already maxed out or nearly maxed out a setting to compensate for the change in airflow it's got no room to compensate for those other things.
Teardown Dan Or else the ECU just reverts to pre-set parameters, so that the engine runs rich, has poor gas mileage and loses power, rather than ‘self adjusting’.
@Matthew Stone a header will do something on a stock engine it all depends on the engine my engine in my car with intake headers avd exhaust you can gain anywhere from 15 to 30 whp depending the header and intake
@Matthew Stone headers do move than be less restrictive 😂 do you know what exhaust gas scavenging is 🤔 because that's one of the main benefits of headers and one of the things they design it to do best
@Matthew Stone with stock o2 sensor it will still gain hp you might need to install a o2 fouler on the second o2 the one that was for the cat but that's it, and like I said a headers does more than just flow better the main gains are from proper exhaust scavenging
Aren't headers like one of the first mods most people do. Like Cai, cat back, headers and tune. That's like the standard must do mods. Even people that dont race their cars do these UPGRADES
How about a nice set of road-grade radial tires, made by a reputable company? They get better fuel economy than Bias plies, they're a tad safer due to the internal belt structure, and they sure as hell look cool if you have the correct profile for your vehicle, as well as tasteful rims.
The RUclips Phantom Official But aren’t they practically a death sentence in the rain?
@@Spaceman2484 Nah, my car has thirteen year old radials and it's just fine if you drive like you have some sense for one time in your life. Up hills in the rain is kind of sketchy, but usually feathering the hell out of the throttle keeps the tire (non-posi) from spinning. Besides, who cares about wet handling? A person with more than two brain cells and four minutes driving slows down when it's wet anyways. I drive the thing rain or shine and it does just fine. Hell, even in the winter it does fine. High idle slurps fuel like a uni kid slurps beer, but what are you gonna do?
True nobody races in the rain with brains...my first mod is always grip,suspension, brakes then engine
Like he said....back in the 50, 60,70's and 1980... yes - headers were a good thing. If you have an early muscle car - it might be a good thing to do, still!
But remember, most of those old engines were N/A - naturally aspirated, If you have a car with turbos or super chargers...the real horsepower comes from install a bigger power adder, now if you need headers to install the bigger turbo ... then why pay for the hears twice?
Listen to what Scotty said...headers - by themself - are wasted money on the "newer cars" ... meaning anything made after 1990'somethings - to 2000's... until you change some other "expensive" parts and upgrade the ECU...computers and change the program tune to match.
Note: the Internet was only getting started since 1995. There was not such thing as You tube. If you wanted to know "stuff" you had to read a book. If you could find one that was worth reading.
Fuel injection was still mechanical, there were no MAF, MAP no open source computer controls and no one was making the bigger injectors, fuel pumps or knew how to design return style fuel systems ... that came later, much later...much, much, later!
However, the old Foxbody mustangs were the beginning of factory installed tubular headers, which they put on the early 5.0 overhead valve engines. They were not full length headers - but they were tubular headers. The Japanese, and other smaller engines started putting them on their 4-cylinder cars - because they are cheaper to make. There ain't much "cheap" horsepower in newer car engines any more. Last I heard - figure about $35 - $40 (with newer cars, maybe even $80, $90 or $100) per horsepower is what it'll cost to hop up/modify newer engines. If you need someone else to install the parts "for you"...then figure shop time will start at $60 - $100+ per hour... based on where you live and what you need installed. If its dealer installed...bring your own grease... 'cause it'll be even more painful!
Newer engines don't leave a lot of "cheap" horsepower on the table any more. The best you can expect (from a 4-cylinder engine) is maybe an extra 5 or 10 horsepower, by changing headers, removing the cats and putting on a $500 - $1000 exhaust system. Now you can make a hella' lot more noise - but no mater what "they say", more noise is not equal to a bunch more horsepower... at least - not until you change other things too.
Been thinking of getting headers in my 05 325i and this man showed up in my recommended
Not worth it. For just going to work or getting groceries. Nobody cares how loud it is, if it looks good.
I installed high-performance mud flaps and fuel injected lugnuts on my Silverado and gained 50hp to the rear wheels.
both of them? i must have done something wrong. i did that all my power went only to the rear left, the rear right wheel got like 5 hp. i knew that mechanic was feeding me bullshit when he said that was normal.
Rocky Roadster you need a short throw dipstick
GraveUypo - I found 4 pk of special anti-slip valve stem caps that puts equal HP to the rear wheels. Even if only 1 side originally had power. Pretty amazing. O'Reilly's had them on sale for 98¢ + tax.
Thanks, Red Bird! I'll have to get one of those.
Make sure you replace your blinker fluid when you do. All tho I think mr. John Lennon lookalike in the video will give you plenty of reasons why not to change your blinker fluid.
next up "why you shouldn't put ice cream in your freezer"
That shits funny. Thanks for the laugh.
Lol
It will cost more electricity to the city, and your electric bill will go higher and higher. So don't buy ice cream, specially in summer.
By: Scotty
Hell man, it's cold already. How cold do you want it? Say you don't want to eat a half gallon at a time? Buy those single servings and when you want more, drive 60 miles to get another. Scotty logic.
Lol!!
My dad gave me this speech years ago, now all my cars get headers and de-cated
God yall stoopid
Yeah but you have tune it after for better performance
@@DylanL69 Nope
@@user-ge2qn6gp4o yes on fuel injection you do if you don't it robs power I've done it before. The computer can only compensate for what parameters are programmed into the computer if it exceeds the parameters it will detune the engine
That's a real nice way to honor your Father -- NOT !! Removing those Cats tells us that you don't care if WE ALL choke on the air that you're polluting. FOAD !!
I’ve never had problems with how my cars run after putting headers on them. I’ve honestly had them run better. I also got a flash tune on my mustang and the headers helped even more with the tune it also sounded much better with a lower rumble
I'm sure you seen a little more gas station, also.
Without tune tho they’re kinda doing more harm than good. they have too much airflow and start popping then could cause misfire from the air to fuel ratio being off.
Weird. Im suddenly in the mood to drive my straight piped v8 lol
Me two
Same
"Headers are silly"
*reported for hate speech*
🤣🤣🤣🤣🤣
😂 😂 😂
👍🤣🤣
I'm sure someone actually did report that
Lmao
I swear this guy lives down the street from me. I see him out yelling at his roses every day
where is this at, is he really in HTX??
@@P71ScrewHead the heat melted his brain
@@mr.motormaster9881 too funny..
Thankyou scotty.. whenever i need advice that doesnt make sense and is usually completely wrong i turn to you. R.i.p scotty
I’m still gon do it tho..
Dang right just ordered a set of shortys and cat delete. Here in tennessee we have no inspection
Me too
Tuners : engine swap, exhaust, and turbo
Scott : dont mod a single thing my celiaca will beat it. 😂😂😂 should have bought a toyota
3:42 - Aftermarket manifolds need to have a warning on them: "This component can cause the pistons to hole" 😂
Toyota's are faster when you put a Fart Can at the tail pipe & Change the Air in your tires every 2,000 miles... Lol
my cilica will leave yall in the dust when youre broke down!
Scotty will beat them in a race to 500,000 miles on their car.
I don't need this kind of negativity in my life
What I am always wondering this man doesn’t have word of yes or do it always do not do not do not such a Negative person as you said
😂 LOLOL
So put on the performance headers but tune it.
Got it!
Stock is garbage to hell with the law.
Love the way u think😏
Hell yeah! 🤘🏾
@peter peters no kats
I fought the law and the law won
Scotty the best blind mechanic on the planet!
Scotty, I put stainless steel shorty headers on my 1999 Chevy Tahoe 5 years ago and not one issue ever. Gas mpg went from 14mpg city to 17mpg and highway 19mpg to 24mpg. Power on top-end is way better. The cast iron Chevy manifolds are restrictive. The exhaust system was left the same.
What engine do you have on the Tahoe. And what brand of headers do you have. I have a 95 c1500 with shorties. Yet they are a pain just for the spark plug replacement.
I put short tubes on my 06 ion and now that you mention it, I have been getting better mpg
@@armandomendoza3167 I have a 96 c1500 .. i want to put some shorty headers as well, it's only a 4.3 v6 though. Do you recommend the headers or is it to much problems ??
I have a 5.3/2005 gmc, do I need a tune if I put shorty headers on my engine? Just bolt and go right?
Shorty headers are not really headers.
In I did cold air intake and full free flow exhaust on a ls7 motor and with no tuning done it gained about 39 hp and it was at 3500 rpm that's about mid rpm u car at about 50 miles a hour sits around 2 k so a Lil push and boom ur at mid power
Scotty Kilmer here and today WHY NOT TO LIVE YOUR LIFE!
Youngbl33zy 😂
The comments here got me dyyyiiiing 🤣🤣🤣🤣😂😂😂😂😂
Me too! From exhaust fumes, and leaking head gaskets! 🤮😂🤣
Next video:
Why tires are terrible for the road and costs money 😄
They made basicly indestructible tires out of hemp in the early 1900 but buried the patent because they would run for pretty much ever without wear; also google or youtube tom ogles 1970 galaxie he got killed and his patent buried as well
Who says you can't take a catalytic converter off a car?
I bypassed one in my Honda after it got stolen. I live in Washington and we don't have emissions testing anymore. So yeah
I agree Scotty! But you can buy a tuner and adjust the air and fuel mixture yourself if you decide to put one on. I slapped long tube headers in my mustang GT. Kept throwing a code the right bank was running lean, so a simple 150 dollar tuner and I could adjust it to run correctly. 100,000 miles later it's still running strong 💪
What tuner did you get
@@jaybarrera1834 05-10 Lito all day and I believe the coyote guys are going through Lund
All you have to do is reset computer, it will relearn the new flow. It's not enough change to need reprogrammed or flashed.
STICKERS! STICKERS! STICKERS!
Everybody knows stickers on your car is where the horse power comes from.
I changed my 98 Civic SI to SIR back in the day. Only cost $5, took 2 mins to install. Amazing gains!
And flames
I had to remove my stickers once I had kids, it was just too dangerous.
Yep that's why my go kart looks like a rally car and goes faster
I just added 6 new stickers and a racing stripe. I gained so much HP and now am fast
My dad used to say the cheapest way to make your car go faster is to SELL it and then buy a faster car.
So he's not a car guy got it 🤔
He's right lol.
What if you have a dodge demon
This just hurts my head cause there is so much wrong with it.
@@angelgarcia-salas4794 Sell it and Get a Tesla with Ludicrous Mode!
Sounds exactly like what my dad told me when I was 15 and wanted headers for my 4x4. I did it anyways and I still do it today and I’m 32 now. It’s like a habit. I think I’m getting old now though because even though I still put them on, I curse the damn things to hell every time I gotta change the plugs. Not to mention all the hassle you have to go through with re-tightening the flange and collector bolts constantly, putting fiberglass sleeves on your plug wires, and even having to run those stupid expensive short plugs which I find really aren’t much shorter than normal plugs. I’ve actually come to regret putting them on my 96 vortec this year, damn things keep springing leaks like an old garden hose. If the manifolds weren’t cracked, I’d have just left it stock.
So, like me. You don't advise doing that? I feel your pain. So happy, I sold them L.A.C.'s, and just gone stock. Saved gas too.
@@davidleekalbjr.3035 yeah I hate to sound like an old fart but for a truck that you want reliability from, I’d keep it stock.
@@moorefab8192 I'm 42. I told my kid not to do it. Just take it from an, "Ol man", words of advice. Lord knows, that's exactly what my Dad said. I know he will do what he wants, and will say it to my Grandkids.
So does dat mean i should use long tubes or shortys
Long tubes only if you are gonna have open headers and drive next to Scottys house. Shorties if you are gonna run a full exhaust
With long tubes u get a lot more torque thru out the whole power curve because of the better air flow from the longer tubes to the collector
@@thebagelman124 not true. Long tubes on a stock engine kills low end torque.
LS Brandon Long Tube.. Shortys is pretty much like a stock.
Longer exhaust headers will create a better scavenging effect at higher rpm, creating more power in higher rpm, short header will create ideal scavenging at lower rpm.
You have to decide on where on the rev range you want the power.
they wont pass inspection because they're too noisy mhhmm.... WHAT ABOUT A GODDAM CHOPPER I CAN HEAR FROM 3 MILES AWAY, cops ignore them
Loud pipes save lives
@@brandonc5282 If that was true, does that mean no one has died on a motorcycle with loud pipes? Just wondering...
@@johnclark3067 no because that's not how life works. For example, "Seatbelts save lives" is a common phrase, however some people wearing their seatbelts during crashes still die.
So maybe I should rephrase my original statement as "loud pipes help save lives by making people more aware of your presence" but I'll stick to "loud pipes save lives" for brevity's sake.
The reason the cops don’t ticket bikers with loud pipes is because they likely own a bike with loud pipes.
John Clark strong logic.
This video has so much misinformation it's impossible to even know where to start.
Will start with modern fuel injected cars have a computer that has AFR learning by to match a predetermined AFR table programmed into the ECM. It learns this by reading the sensors from the MAF/MAP, knock, Engine Speed Sensor, and AFR sensor. It then adjust fueling for the extra air flow due to the extra exhaust flow. The beauty of the modern ECM.
Second. Headers and exhaust are a supporting mod that are normally done first because they don't require a tune, but best performance would be seen by one.
Third. The popping sound is from pair valves or EGR not being removed.
Dane Carpenter -- I have a 2017 Chevy express 3500 cutaway box van with a 6.0 motor. It has to downshift to go up hills if i’m driving under 65-70mph. Will exhaust modifications help with this? I don’t care about the downshifting per se, I just want better gas mileage. 3,000 miles per week turns into a really big fuel expense.
@@thomaspayne6866 3000 a week damnnnnn?
lilbbbbbbb -- that’s pretty normal for long haul truckers from what I understand.
@@danecarpenter8735 What is the adjustment that this creates? More fuel?
“Stock manifolds are durable”
Ferrari: “Hold my Prosecco!!!”
Scotty: today’s auto manufacturers cut corners and their engines are unreliable garbage
Also Scotty: don’t try to make the engine work better, factory is fine.
Lmao he didn't say that at all
He's 100% right, any aftermarket add ons defeat the original design.but us car guys and gals like to drive something different than everyone else...lol
The thing is that sometimes the original design is crap. Many manufacturers just put some headers not because they have the best performance but because are cheapest to produce.
@@svetko05 definitely true.
autobuff65 well no, there is a reason why engineers did not design your modern car with exhaust headers. Modern cars aré computer contolled And any modifications as such could mess things up. The only cars that benefit greatly from headers aré The older non computer controlled ones like The súper cars of The 60 And early 70s. People call them muscle cars now but they were actually called super cars back then.
Ye we don't like shitty Toyotas
@@svetko05 How about short headers on a 1999 dodge ram van 3500 5.9L gas engine that leaves the exhaust pipes, cat, and muffler in oem place?
Mine came with a log. Headers were the best thing ever. Now that we have efi the O2 AUTOMATICALLY readjusts it works even moreso on today's cars
But it's gotta be tuned or you lose power
@@DylanL69 long tube headers + tune= powahhhhh
@@stew-03 on injection you have to tell the computer you put headers on or it can't make power it will detune and start freaking out
My 1972 442 W30 Clone feels profiled after seeing this. This is almost like a butt chewing speech I got from my Dad when I bought a 396 Camaro in 1981. The only thing missing is the yelling about the ticket gettin' 60 series tires I stuffed under the back...Also I live in a Free State where one has to never have an emissions inspection.
I had a 71 demon 340, I used to take it to the drag strip every week, oh I miss that car!☹
Next video: Why not to have fun with your car!
yeah because it will break and then you have no car
@Jeff Oliver ok...
It’s almost as if being a responsible adult is something bad.
Next Video after that one: Why not to turn on your car. IT WEARS OUT THE ENGINE!
Alex Ibarra I think that's common sense...
so no headers? leave the exhaust ports open? ok
😂
1 Exhaust manifolds and their bolts break all the time.
2 Catalytic converters are a fire hazard in rural areas.
3 headers can be set up to enhance power and torque in specific rpm ranges when set up with the right cam shaft and tune.
4 tuning by computer is infinitely easier than guessing which fuel jet to install in a carburetor.
5 exhaust manifolds are restrictive on purpose so engine temperatures will climb faster because cold engines put off more raw fuel and carbon emissions.
6 less restrictive headers don’t run as hot if you use the right thermostat, and offer better fuel economy than stock manifolds.
People love the rich sound of a well tuned engine!
About the rich sound, hell yeah! Open headers on an old 60° Ford V4 (They used them in a few Saabs) is a sound you'll not forget. Much less any V8 in existence sounds like the apocalypse when properly tuned with a nice performance exhaust, bigger injectors, and forced induction!
There is a difference between the sound of a well tuned engine, which I can appreciate, and a riced out fart can, which I can't.
You shoot at cars with a 9 MM semi automatic rifles and handguns. That explains your logic.
Omar Tinoco that was random.
..."4. tuning by computer is infinitely easier than guessing which fuel jet to install in a carburetor. '....
....If someone is really, just swappin' carb jets - by guessin'...then he shouldn't be under the hood... 'cause,even it he lucks up and gets it right...he probably will be too confused to know when to stop.
'Cause, after the jets are right - the next step is to adjust the timing...again.
Had 3 cars with headers already on, replaced them with factory junkyard manifolds
Damn dude, power wash the side of your house will you?
2:54
Scotty I'll pressure wash your house if you replace my header with a stock manifold!!!
Kristopher Hasenbuhler d
😂😂😂😂👍👍👍
Why not to power wash your house.
Rev up your power washers, on this video you will see how to properly wash the side of your house to not annoy your viewers 😂😂😂
I’ve been daily driving my car with headers and nothing wrong has ever happened 😂
Scotty's just saying the gain is not worth it since you will rarely take advantage of it all other than racing.
You just need a dynotune
@@dangeristh33 the average "Dyno tune" shop today.... can't handle anything with a carburetor - or anything which can't be done using a computer interface.
If his dyno is being pulled on a trailer... he can't help you with anything running a carburetor.
What you need is some "gray haired or No haired" old school tuner (or his son) - who learned it by screwing up. Not out of a book or over the internet.
Just sayin...
ernest tibbs he was saying that fuel injected cars controlled by a computer would have no point in having headers installed but with a tune like you’re saying the headers would gain power and run right
Been driving my 4.8 full bolt ons 456 gears no kats for years drives fine to me
The popping and backfires are on purpose 😂😂
Trash tier
@@bigprojects2560 broke tier
I put a header on my 93 civic, my car sounds factory, its at 1.3 million km and you cant tell its modified, my gas mileage is perfect and the car isnuntuned, unlike other manufacturers 1990s Honda ECUs know how to compensate.
My Tesla doesn’t have a catalytic converter, I must be breaking the law.
why you watching this then if you have a battery car lol
@@danielkalinowski5157 r/whooooosh
Actualy you are. So if I was you I wouldn't tell anyone
@@rosebarton952 please tell me you were joking. I refuse to believe people can be that dumb
About the cat. Removing them is pretty much against the law. All because of emission laws, now about headers, the more airflow means more go naturally and if you want better gas mileage with that you have to remap
What a Joke. Come on man.
Right
Thats the thing. Its a supportive modification. Alone it doesn't do much. Put put that with an entire exhaust set up, and an intake setup and tune it correctly. You will see gains in power. And no, most manifolds now a days are not made to flow better, they have to keep in mind manufacturing costs, noise levels, and many other factors. Exhaust flow is not their main concern.
I was going to say the same thing. Engineers now are only concerned what will fit what will work, not what works best.
Don't forget emissions standards.
@Mike shots fired 😂
Your heads are the part that is optimized by headers thats why you port match your headers
Headers make quite the difference on engines with too restrictive manifolds like the mazda kl-de
Another thing to mention is the upstream o2 sensor is often placed on a single pipe. The ecm will only see combustion readings for that cylinder as oposed to that bank when the o2 sensor is located where the pipes meet. Fuel trims will only react to that cylinder as oposed to that bank.
Basically only get headers if you have a race car and are going to tune it 🤷🏽♂️
T Davis "Why not to Tune Your Car into a Racecar"
Lolled9991 “modern”
@Lolled9991 most people have modern cars dumbo🤪
T Davis or a trash mustang 👀
My celica came with a header from the factory. I guess Toyota screwed up.
50WHP gained on 8.1 Chev from headers and a tune only. Still has OEM cats. Not all situations are equal.
I added highperformance lug nuts and high performance vinyl top to my Buick and it added 70hp
I highly highly doubt you made 50whp from headers and oem cats
@Paul Dana Ever heard of performance mufflers? I have been known to drop my exhaust pipes and run on headers at night. The light show is incredible.
@Paul Dana When I was a kid in the 50s we tried to avoid fire since it was nearly always a screwed up carb backfiring into your face.
My Malibu Sport would toodle along at 120 with a nice light coming from underneath. I avoided a rich condition like the plague since that's a good way to wash out your rings.
I don't do anything automotively just for the hell of it.
I spent nearly every day from the time I was 12 perfecting 4 wheel drifting. I had lots of racing driver heroes but Jim Hall was the ultimate with his various iterations of the Chaparral.
25hp on my 1.6L honda with racing header
This guy acts like a set of headers aren’t specifically engineered for their engine...
Only engineered to basic level, as they dont have same army of people like car manufactures.
you didn't watch the video
@@Len1977gt give me a break, scotty always has dumb opinions lol
Headers are designed TO FIT specific engines to specific applications -- they are not "tuned" for each engine configuration.
@@SlikLizrd you buying headers from mr. sketch down the street that made them in his backyard or a reputable company
My lots Scotty haters out there. So Scotty, serious question, the Ram 1500 5.7 Hemi stock cast iron exhaust manifolds warp, break off bolts, and leak at around 60k or so. Is there no alternative to replacing them with crappy stock parts that will also warp in another 60k?
Scotty says; use your head, not your headers
"Why not to have car insurance"
You are you uslessle
yeah bro your uslessle
Coz you spent it all on boymods for a shutbox not worth $2000 lol
If Scotty played D and D, his character would be Chaotic Good.
He should play D&D with Sargon.
No, it would be Toyota Standard.
His Toyota would give him like 3 extra six sided dice for any skill check or saving roll.