Use a drill with a wood spade bit with an extension added to the spade bit. Drill holes in it all over(the honeycomb) to break it up and then use a shop vac to clean it out. Way less work.
Hey dude, it would have been better to remove the whole pipe before hammering because you are putting an incredible amount of force against the whole pipe going to the headers which can cause an exhaust leak and damaged pipes/headers...I know because I did that with my integra back in the day
@@ERICSDIYGARAGE well you can take it off at the manifold, but depending on the vehicle and the age you'd probably end up replacing the studs if you tried to take them off lol. No disrespect, but if somebody tries that and their manifold studs and nuts are rusted to shit they might end up with an exhaust leak lol. I get where you're coming from though and you made a good video, just a thought for someone who might try this themselves and end up breaking off old rusted exhaust studs.
No you can't add a test pipe to these vehicles because the cat is welded to the y pipe only way to add a pipe is to cut the cat out and weld a new pipe in.
i used your advice and decided to unbolt my primary cat without gutting it yet to see how it sounds on my stock genesis coupe. i took it for a spin after and it was UNBELIEVABLE. The car was misfiring badly and had a bad trans and i got it all fixed but it was super slow being my first stock genesis coupe and the cats underneath where there is no o2 had to be hella clogged. it sounds like i have an external wastegate dumping to atmosphere. And the MOST important part. the car is literally pulling soo hard now i couldn't believe it. never threw me in my seat now it is. it literally feels like it gained 40 hp. it sounds like it has over 300+hp lol. going to gut the both cats out then install it back into the muffler later on.
took off the primary cat. was able to get one of the o2 sensors off myself. the other one i definitely need a o2 sensor socket. i cant wait to hear how it will sound without and cats open downpipe
I think u just spoil the expensive part of a car, while u may just swap it with a straight pipe, with the option to reverse it back the CAT anytime in future.
if you actually listen to the video, I mentioned that it won't though a check engine light or make you not pass emissions testing because the cat is not metered by a 02 sensor
So it's ok for the major companies like VW and MERCEDES to do it, but if we do it we're bad people? They set the precedent of cheating and how to be scumbags a long time ago pal.
@@charlesbelville5090 cut it and knock out the comb or use chemicals to clean out the carbon.. scotty kilmer made a video using lacquer thinner to clean a converter.. if you can, just cut it off, it helps all cars run better, but eventually need to get it tuned after that. Also on newer cars gotta worry about it throwing a code.
Get a big hole saw with a drill extension and make a big hole in the center first, then break stuff out. If you have a hole saw as big as your exhaust pipe then all you need to do is drill out the hole through both ceramic disks to creat a straight through exhaust flow.
the catalytic converter is welded on the y pipe i would have to cut the test pipe and then cut the y pipe and it still might not fit plus this was fast and free.
Correction. The exhaust cycle and the intake cycle are closed circuit. In other words, you can run a straight pipe with high flow headers and it won’t make a single difference to the intake of “more air.” The cylinders, bore, and stroke are the determining factor to how much gets sucked in and how much gets pressed out.
If a cat is restricting the flow and you convert it to a free flowing system the intake will naturally be sucking in more air as the exhaust is ABLE to pump out more then before, think of it as a cigarette with out a filter, when you hit it it’s way less restrictive even though you are exerting the same force if not less with your mouth compared to hitting one with a filter.
You are correct in that the system will never be able to go beyond 100% maximum intake. What you have failed to account for is that things like this can reduce your systems ability to perform at that maximum. This isnt going from 100% to 105% for more power, its bringing the system up from 90% back to 95%.
Filter your nose and mouth with a rag and and tell me the result. It doesn't matter how much volume your lungs have... if the air can't flow due to exhaust restriction, it's severely impacted
You too can have a permanent p0420 code not be able to register/pass emissions. Many cars used the down stream sensor for fuel trim, so you can expect to make less power and get worse fuel economy without a new pcm and a custom tune.
Have decatted pretty much every car I’ve owned, and can say I’ve never lost any power. If anything I’ve gained slightly. And the code is easily erased. As for passing emissions, there are countless garages that will pass it for a bit of extra cash
The Pre cat O2 sensor is the one that checks the AFR. The downstream sensor is easy to trick with the right spacer without a retune or aftermarket ECM. Without a cat or a hollowed out cat you gain a few HP and at least 1-3 more MPG
@@TristanVash38 The cvt transmissions cannot handle getting hot, that's when they start slipping, they need a transmission cooler added on to the car. They will last a long time then. That's what I did.
If you put true straight pipes and a cold air intake on a stock car or even turboed car it will not do anything. You need to get a tune for it to be beneficial
That's not true at all! As a matter of fact most cars have a highly restricted intake which after being removed increases power, now the exhaust is a different story...
put straight pipes through in pace of cats if you must, cause cats are worth $$$ as scrap, that is why exhaust outlets promote removal or replacement, they make a lot from collecting them all for bulk scrap. I make good $$$ later on to put them all back as std and return car running to smooth and fuel efficient once more
If i replace the catalytic converter with a piece of exhaust pipe and leave the O2 sensors in place will the ECM recognize it and give a fault code or would I have to install bungs to pull the O2 sensors away from the exhaust stream?
To be perfectly honest with you all this car has 3 catalytic converters the one he just hollowed out was just the back one which means that the first 2 converters receive all of the congestion first. With out gutting all 3 you really haven't done anything. If you want real horsepower 🐎 gains you have to do all 3. Besides all of the cheap Nissan owners who let they're oxygen sensors go bad and not change them and continue to drive with the check engine light on for years converters stopped up anyway and probably already got burned valves and a permanent missfire
I strip cars for a living and I had one of those come thru that still ran and the first thing I did was cut the cats off and fire it up and your right till this day I've yet to hear anything sound that mean without an aftermarket exhaust or open headers on any vehicle
I strip cars for a living and I had one of those come thru that still ran and the first thing I did was cut the cats off and fire it up and your right till this day I've yet to hear anything sound that mean without an aftermarket exhaust or open headers on any vehicle
You’re not gaining any horsepower without a tune for being catless, all you’re doing is increasing the amount of times you’re going to see your check engine light.
If there is no downstream O2 sensor behind the cat, it won't throw a code or lower performance. Those only happen when altering cats infront of the downstream as it'll not only throw a code, but also alter the afr because it believes there is still a cat and the O2 is bad. For example, when I had a bad leak infront of my downstream O2, my truck ran very rich and would even flood with gas at times.
@@elitesniper40 lmao he's doing a cat delete on a fucking ALTIMA LOLOL and your worried about what it's going to sound like he coulda just replaced the cat with a pipe and sold the cat to fix his broke ass catback
Shit least u gotta a bag. I live in California. No plastic bags aloud. We have to used weaved bamboo baskets. Since it's a fast renewable resource. I love California. Go gay!,
I am trying to do this not because of the hp because my cat a mess up and it will cost 1k to get new one for my jeep so if I delete it it won't mess up the engine sometime the engine stall cuz of that
You need to put a straight pipe in place of the cat and you need to delete the egr system with a block of plat also remove the smog pump if you have one and install o2 sensor plugs which can be purchased on ebay then you will be ok in the state of MA you can do this if you car is at least 15 years old or older because they do not require emissions testings as long as they are quite so you have to leave the resonator and muffler alone.
Chuck Taylor problem with rock auto or similar catalytic converters is that they are garbage. I have installed off brand cats for customers and had them accuse me of not doing the repair because their cel would come back on in a week. Aftermarket cats use less than the minimum required to get the job done
have you noticed you don't see many muffler shops these days? That is because cars are equipped with catalytic converters. They prevent the formation of sulfuric acid and condensates in the exhaust which used to rust out mufflers and tail pipes.
That cat is unmetered. Just buy a cheap Y pipe without the cat and install. Easier and will give more hp. Did one on my 05 3.5 and loved it. Added power everywhere.
I just wasted 5 mins of my life. Change the title call it how to gut a catalytic converter. U just lost money when u could of straight pipe and sell the cat. U just threw out platinum which is what inside a cat. 🤦🏾♂️
@@Justnn I personally wouldn't do it, also the car is engineered to have a certain amount of back pressure from the exhaust system. Missing is stupid but broken up like he did? The cat could certainly disintegrate. The exhaust system would have to be removed and inspected to verity. They can't prove he did it. Not saying its right but a straight pipe is a bad idea. Anything over 25 yrs in NY is exempt. Things rot out here, had to buy a new cat for my 96 Explorer, it had a hole. Probably could have welded it , looked pristine inside. Cats in NY and CA cost a fucking fortune too. There is a special part number and it has to be certified. Technically you fail inspection if the numbers aren't visible.
Yes wear a mask. I had a 1983 Saab 900 turbo that I used a 1 1/2 inch wood spade bit to cut a core through the center of the honeycomb cat . Left remainder there. Car ran a lot stronger for next 100K miles but old air cooled turbos only lasted 65K miles. I abused the crap out of the motor as under back seat could turn up boost and I ran 104 Octane booster . Ate up Corvettes , Mustangs and Camaros back then . Also ate up front tires every 20K miles but worth it to see the look on Billy Bob's face.
"by releasing more air, you should be able to take in more air..." To put this into context, that's like me saying "by farting more, you should be able to breath more." It's 2 separate systems that make 1 whole system. Deleting the cat, will not let more air into the engine. I would study up a bit before saying something. Don't just believe what someone once told you without verifying. 👍
Doing this has increased hp on my motorized bicycle dramatically, top speed and acceleration. It's because there's less back pressure pushing against the pistons exhaust stroke. Not to get into if any back pressure is necessary, but less is better in this case for getting more power.
@@lieutenantmikeo5979 a catalytic converter delete? Likely not, unless electronic systems are not adjusted and tell the engine "hey dude, my cat is fucked up!" Consequently sending it into limp mode, but not hurting the engine. If a tune is implemented, the engine will run BETTER. If you mean deleting the exhaust as a whole, it will damage the engine. The extent of which depends on the stroke type and other characteristics of the engine.
Also re-reading this. The original comment sounds more idiotic the older I get. Saying they're two separate systems is so foul. Every system in an engine relates to every other system. From the intake to the headers, from the coolant system to the pistons. They all are integral and affect eachother
Thanks for the information....I deleted my whole exhaust so theres no pipes running off of the cats and I wanted to also remove my cats for my own personal reason(s). I pretty much would only have the headers on the motor and I'm hearing that I could bend something in the motor or have warping so I was just scared to follow through with removing the cats
*Whào!.. made a really good amount of difference. Im surprised! Unexpected!.. sounds alot more sportier, better.* I have a altima se on se-r's. Def gutting out my third cat out next months. Thanks for da example bro. Good shyt.
Did it have 02 sensors on the cat? I’m thinking about doing this on my 17’ Sonata, with an upper and lower 02 sensor, may have to get a spark plug defouler for the lower if the cat throws a code. But without the honeycomb, the car would have a free flowing cat, which is attached to the manifold. Easy enough to get too, but still work to reach. If I can get the comb popped off/out, I think my exhaust stock will pop with mufflers on.
I'm going to make a correction...deleting the cat only improves outgoing gases, not incoming air. You still need to modify intake if you want it to "inhale" more.
Thats not going to disrupt scavenging lmao. All it will do is slightly reduce backpresure. If he had a larger diameter exhaust pupe then yes it would reduce scavenging by a small amount but would reduce back pressure by a lot. It helps to add a 4-1 or a 4-2-1 manifold to optimize it
Cats are filled with PLATINUM , Wich is more valuable than gold.... This is why the junkyards want your vehicle with the stock exhaust on it.... They make a killing off that ONE item.
I just hollowed out my cat converter from an 82 Vette over the weekend. I used a hammer, crowbar, and a box to set it in while breaking up the innards. Took about 10 minutes.
You should have said it’s illegal in all states be cause it is lol. There are a lot of states that don’t do emissions checks so you can get away with it but if you get caught then you’re breaking federal and state law. Because even though there are no emissions checks it’s still illegal. Plus another hint if you wrap exhaust back to the first oxy sensor and install a oxygen sensor defouler you can clear nearly every check engine light that has anything to do with exhaust emissions because it will come on.
Short of changing other parameters...camshaft..timing..injection timing/volume...inlet tract...all you gain is noise! More noise is not more performace! Std cars are designed to have back pressure. Romve it with no other mods you lose power and drivabilty. Ang if you run hi flow cats they are not restrictive at all. Even std cats not very restrictive if at all
This is good. It seemed like there was piece of sheetrock stuck in the cat. I have a 2007 Nissan Maxima, just changed the motor at 220, I didnt have to but A mechanic took my old motor apart when he changed the alternator to get to the timing chain that clicked. I wasnt happy since these cars make the ticking noise bc of the timing guide, anyhow that starts around 150k they said the motor that was installed has 77k, but im saying it has 135k since i know the noise of these vehicles. The old motor could have made it to 250k before a rebuild. what can you do. Alternator isnt a joke on these cars by the way.
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Pro tip - Wear a dust mask or respirator. This stuff is deadly. 👍🏿
👍
Notsofast L what if i want to smell that e85?
@@RhythmWalkerKS you paying for the exhaust that I bet he puts
Nah fr.
Pro Tip Enjoy Ur Mask 👍
“Make sure this is legal in your state”
Car guys: 😳
Pay the inspector a little extra🤧😂
@@Velotooslow most of arizona dose not have inspections only big city's like phoenix
"Make sure this is legal in your state"
Show something that's illegal in all 50...
@@Nuttty ahh, I’m from an small town so it’s really to pass with a muffler delete
@@hcmtnbiker no more smog in washington state so i don’t think you can really get caught
Use a drill with a wood spade bit with an extension added to the spade bit. Drill holes in it all over(the honeycomb) to break it up and then use a shop vac to clean it out. Way less work.
I used a masonry drill bit 10in
yeahhh frrrr
I used a masonry bit in a hammer drill, worked a treat 😂
8:22 does it have to be a walmart bag or can it be whole foods too?
Walmart is cheaper and better
LMFAO. !!!
Family dollar 😂 😆 😭 💀
Who would use a whole foods paper bag to pick up trash?😂😂 People use those to carry lunch
@@chicanosneakerhead939 goodwill maybe?
I would have sold the 🐈 and bought a piece of pipe from parts store..and have a few extra bucks to smoke crack
lmao
If you still have the cat on there then the cops can’t tell you deleted it.
Um. Ok? 😂
Sell the whole car for crack and skip all the stress of catalytic converters entirely
Randy Ledford 🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣
1:21 - - 9:06 for a quick sound reference, before and after.
Thanks for that 👍
Dude your a legend🤘
The exact same Bru lmao if not worse after
In all honesty sounded way better before
Thanks
I like how he had to tell us it was a Walmart bag... he’s about them details!!!
Sponsored by walmart.
You don't want to use an HEB bag. Oh no.. 🤣
I wonder if generic convenient store "Thank You" bag will work as well! Hmmm?
😂😂😂😂😂
Like 111
Hey dude, it would have been better to remove the whole pipe before hammering because you are putting an incredible amount of force against the whole pipe going to the headers which can cause an exhaust leak and damaged pipes/headers...I know because I did that with my integra back in the day
same question
Even putting a jackstand under it and ratchet strapping the cat to the stand would help if it's an issue getting the cat off the car.
The cat is welded on to the whole exhaust it can't be unbolted
@@ERICSDIYGARAGE well you can take it off at the manifold, but depending on the vehicle and the age you'd probably end up replacing the studs if you tried to take them off lol. No disrespect, but if somebody tries that and their manifold studs and nuts are rusted to shit they might end up with an exhaust leak lol. I get where you're coming from though and you made a good video, just a thought for someone who might try this themselves and end up breaking off old rusted exhaust studs.
At the end it reminded me of Scotty Kilmer lmfaoo
I knew all this hard work would pay off lol
Rev up those chanclas!
ERICSDIYGARAGE hey I’m about to delete my front cat on my 03 Maxima! Is that gonna fuck my car up?
@Luis Hernandez you are the reason Trump is deporting all Mexicans
Nice sound dude! Easy way to be a bit louder and gain a few HP without having to spend hundreds of dollars on an aftermarket exhaust!
literally coulda bought a test pipe for 80bucks and keep the cats aswell
No you can't add a test pipe to these vehicles because the cat is welded to the y pipe only way to add a pipe is to cut the cat out and weld a new pipe in.
@@FunFiction704 Why would you want to keep the cats that would be stupid. Keeping cats=restrict exhaust flow=lose hp/gas mileage.
@@FunFiction704 Why don't you go and make your own video so you can direct your own instead trying to be the director of someone else's video
U are stupid 4 doing this
What works good to clear out the converter is a drill and paddle bit , bust that stuff right out .
8:20 Me eating cereal
Straight up.. LOL
Fucking got my rolling! Lol!
AHAHHAHAHAHAHAHAHAHA I THINK IM DYING
Have to admit good-1 :)
Check engine light will result from this.
i used your advice and decided to unbolt my primary cat without gutting it yet to see how it sounds on my stock genesis coupe. i took it for a spin after and it was UNBELIEVABLE. The car was misfiring badly and had a bad trans and i got it all fixed but it was super slow being my first stock genesis coupe and the cats underneath where there is no o2 had to be hella clogged. it sounds like i have an external wastegate dumping to atmosphere. And the MOST important part. the car is literally pulling soo hard now i couldn't believe it. never threw me in my seat now it is. it literally feels like it gained 40 hp. it sounds like it has over 300+hp lol. going to gut the both cats out then install it back into the muffler later on.
anyone who says deleting cats loses hp has never done it to a turbo car
misfiring before removal or after?
before when it was purchased. running great now
ok
took off the primary cat. was able to get one of the o2 sensors off myself. the other one i definitely need a o2 sensor socket. i cant wait to hear how it will sound without and cats open downpipe
Amazing how clean those exhaust bolts are !!!
😂😂😂😂
Had to take a 3inch grinder to mine. Wish they looked like that but that would be to ez.
I think u just spoil the expensive part of a car, while u may just swap it with a straight pipe, with the option to reverse it back the CAT anytime in future.
Well true but a straight pipe may be more visually detectable.
you can also sell it and profit
And about fucking environment??
@@NOName-nn3jv fuck the environment
@@aeon9367 sure do that
bet your gasoline mileage improved also.
I got the same car, but it's a 3.5 SE with a green exterior with a beige leather interior. Also with wood trim.
Imagine waking up and deciding to make a video on gutting your catalytic converter on your 2006 Nissan Altima......
Imagine watching the vid and leaving a comment on it. Mindblown
@@imfrom210texas how do you know he watched it? he could've just read the title and left a comment
@@beams098 I was referring to myself. Horrible attempt at whatever it was you were attempting to do. Lmao
imagine wanting to just have fun with a cheap car cause not everyone can afford a sports car or luxury car
Imagine miss spelling cutting
I remember doing that to my 88 civic hb back in the 90's.
In my next video I’ll show you how to hide an engine light.
I use electrical tape because it's not translucent. Running 10 trouble codes right now.
This won't cause an engine light because that cat isn't metered.
@@LVTHORAscending but when they are though
Just do 02 foulers
Use a spacer on the 02 sensor.
Or just straight pipe it. and sell the cats foe money.
You can still sell the guts
How can I sale the cats please?
Abo Al izz scrap yard just gotta bring documents so they dont think you stole them from a car
@@jeremyhe8328 thank you so much, do you know how much they pay for each?
Abo Al izz sadly i do not but i know its quite a bit bc theres alot of precious metals in them.but you wont walk out disappointed
When you buy a used car and it fails to pass emissions, this is the kind of history the poor car may have suffered🤕
if you actually listen to the video, I mentioned that it won't though a check engine light or make you not pass emissions testing because the cat is not metered by a 02 sensor
So it's ok for the major companies like VW and MERCEDES to do it, but if we do it we're bad people? They set the precedent of cheating and how to be scumbags a long time ago pal.
Poor car? Cars run better without catalytic converters, but true, it is bad for emissions
Old cars never used to have these things. These things are purely for limiting exhaust emissions at the expense of car performance.
@@charleschimfwembe5528exactly and the worst thing that ever happened to vehicles
The Infiniti next to it says “ I hope I’m not next” 😂
😂😂😂😂
Why removing or at least cleaning the catalytic converter is one of the best things you can do.
@@jesusislord4060 How would you clean a cat?
@@charlesbelville5090 cut it and knock out the comb or use chemicals to clean out the carbon.. scotty kilmer made a video using lacquer thinner to clean a converter.. if you can, just cut it off, it helps all cars run better, but eventually need to get it tuned after that. Also on newer cars gotta worry about it throwing a code.
No Rust. Must be nice living in the southwest
Down here in fl , 20 year old cars and trucks look like the underneath just rolled off the dealer floor ,its crazy
It is lol
There’s rust on cars in just 5 years in Mn unless you wash your car a lot
@@tysone1254 Yea my car was in Chicago and MI and the while bottom end is rusted iut
you can see the pipe bolts were replaced.
drinking game take a shot every time he says catalytic converter
I died
Or “CatELeTiC CoNvUrTuRrrrrrr”
Get a big hole saw with a drill extension and make a big hole in the center first, then break stuff out. If you have a hole saw as big as your exhaust pipe then all you need to do is drill out the hole through both ceramic disks to creat a straight through exhaust flow.
Make sure to wear a respirator, dont want to breathe in ceramic dust.
Finally a video that shows step by step
A hole saw on the end of a drill works good too. "Thats what ive heard".........
The title is misleading.. should be " How To Delete Catalytic Converter From Your Mom's Car"
Lol
Nice
jmj5150 😂😂😭
should have been "how to delete your car"
"Kevin, wtf did you do to my car??"
Thanks for the step by step and sharing how this is after performed. But I’ll pass and just buy high-flow catalytic converters
You have more money than I
Most people don't have a ton of money for racing cats
Johnathan Crumm where did you get those high flow cats at im looking forva set fo my 05 Altima SE
Looks like weight reduction
+1 me likes weight reduction
Wear a mask the next time Eric, I AM WORRIED ABOUT YOUR HEALTH LOL.
I think he is now Son
We're all wearing them now buddy. Satisfied?
@@mega_game_play lol 😂
Hey, Pedro... you don’t CREATE horsepower, you unleash it
Hey Kafu, you increase it by reducing restriction.
👍
A cat is ripoff another form of tax
You should have blocked your license plate, Now the smog police will be looking for you, lol
Andre Landry but it's allowed where he lives. No laws against it, no laws broken.
Andre Landry the police ain't gonna do shit, they too busy chasing Donuts
Dankineer It's illegal in all 50 states.
@@u1richh can be illegal but people do it ...in Florida 90% of the cars runs without cats
@@panzerwaffen2873 How are winters in Florida? Looking at houses rn.
You could of just got a test pipe, and would still have a good working cat
the catalytic converter is welded on the y pipe i would have to cut the test pipe and then cut the y pipe and it still might not fit plus this was fast and free.
Donyce19 Whats a test pipe? Can i Google it? Im having same problem.
Donyce19 it was a deeper rumble and pop with cats maybe needs both off
get out of here and get yourself a life
@@papergatorzfedducca7998
A test pipe is just a typical piece of exhaust pipe welded in place of a removed catalytic converter.
hey, someone did this to my car for free when I parked it by the road. Even left it on bricks so I could admire their work!!!
Same thing happen to me
Sorry to hear but was funny low key😂😂
Sorry to hear about your loss rotten bastards !
Who built the garage shelves for you? Fred Flintstone?
Lmao
😂😂😂 just damn
😂😂😂
nice shelves :)
LMFAOOO
Should have just straight piped it and took off the whole thing off🤦♂️
The "facts" here are soooo wrong
Kyle Thomas, he should also keep his engine running when changing his oil in the winter...to prevent it from freezing.
What up
coming from a person who doesn't know much about cars. U r wrong. Stfu! S b!
Paul Roy what are you even trying to say?
RUclipsisbroken Translates. Shut the fuck up son of a bitch
Correction. The exhaust cycle and the intake cycle are closed circuit. In other words, you can run a straight pipe with high flow headers and it won’t make a single difference to the intake of “more air.” The cylinders, bore, and stroke are the determining factor to how much gets sucked in and how much gets pressed out.
If a cat is restricting the flow and you convert it to a free flowing system the intake will naturally be sucking in more air as the exhaust is ABLE to pump out more then before, think of it as a cigarette with out a filter, when you hit it it’s way less restrictive even though you are exerting the same force if not less with your mouth compared to hitting one with a filter.
reducing BACK PRESSURE will increase horse power!
You are correct in that the system will never be able to go beyond 100% maximum intake.
What you have failed to account for is that things like this can reduce your systems ability to perform at that maximum.
This isnt going from 100% to 105% for more power, its bringing the system up from 90% back to 95%.
Filter your nose and mouth with a rag and and tell me the result.
It doesn't matter how much volume your lungs have... if the air can't flow due to exhaust restriction, it's severely impacted
Your 02 sensors determine air fuel mixture lol
You too can have a permanent p0420 code not be able to register/pass emissions. Many cars used the down stream sensor for fuel trim, so you can expect to make less power and get worse fuel economy without a new pcm and a custom tune.
Have decatted pretty much every car I’ve owned, and can say I’ve never lost any power. If anything I’ve gained slightly. And the code is easily erased. As for passing emissions, there are countless garages that will pass it for a bit of extra cash
The Pre cat O2 sensor is the one that checks the AFR. The downstream sensor is easy to trick with the right spacer without a retune or aftermarket ECM. Without a cat or a hollowed out cat you gain a few HP and at least 1-3 more MPG
Not true, Ive decatted multiple cars and gained hp and mpg on all of them. Go hug a tree fairy.
The Nissan 3.5 is a pretty nice engine. Thanks for posting.
The CVT (transmission) however....*HMMMMMM*
this vehicle does not have a cvt transmission but the automatic one aren reliable as they once use to be.
@@TristanVash38 The cvt transmissions cannot handle getting hot, that's when they start slipping, they need a transmission cooler added on to the car. They will last a long time then. That's what I did.
2004-2006 Altima’s and maxima don’t have cvt they didn’t introduce them untill 2007. So these cars with the 3.5 are pretty solid.
@@TristanVash38 its a cd009 or cd001 trans for the DEs
If you put true straight pipes and a cold air intake on a stock car or even turboed car it will not do anything. You need to get a tune for it to be beneficial
That's not true at all! As a matter of fact most cars have a highly restricted intake which after being removed increases power, now the exhaust is a different story...
put straight pipes through in pace of cats if you must, cause cats are worth $$$ as scrap, that is why exhaust outlets promote removal or replacement, they make a lot from collecting them all for bulk scrap. I make good $$$ later on to put them all back as std and return car running to smooth and fuel efficient once more
If i replace the catalytic converter with a piece of exhaust pipe and leave the O2 sensors in place will the ECM recognize it and give a fault code or would I have to install bungs to pull the O2 sensors away from the exhaust stream?
Peter datechmen somebody stole the cat off my dads wrx. Idk why but he only did him a favor
lol
Nice beginning and end sound clip.
Yeah mang. Make my car go vroom mang.
i want vroom bang
R.I.P. mother earth. This is why I love Mighty Car Mods.
Face palm. Yup this, still very clean engine w/o a cat is the prob... not every freighter burning 2500 gallons every hour.
To be perfectly honest with you all this car has 3 catalytic converters the one he just hollowed out was just the back one which means that the first 2 converters receive all of the congestion first. With out gutting all 3 you really haven't done anything. If you want real horsepower 🐎 gains you have to do all 3. Besides all of the cheap Nissan owners who let they're oxygen sensors go bad and not change them and continue to drive with the check engine light on for years converters stopped up anyway and probably already got burned valves and a permanent missfire
😂😂😂😂😂 dis shit got me dying
Really 3 Cat converters? Thats amazing . You sure your not talking about a resonator or muffler?
Heaps of cars have more then two cats... My y62 nissan patrol has four, as does my Nissan elgrand
@@rowanparmiter7622 one off each manifold and a rear cat…that’s 3.
@@rowanparmiter7622 ⁰
Step 1: Have a vacuum ready..
Chill Juan its a Nissan altima
I got a BMW 740il that I deleted the cats and silencers off, things sounds like a beast,
I strip cars for a living and I had one of those come thru that still ran and the first thing I did was cut the cats off and fire it up and your right till this day I've yet to hear anything sound that mean without an aftermarket exhaust or open headers on any vehicle
I strip cars for a living and I had one of those come thru that still ran and the first thing I did was cut the cats off and fire it up and your right till this day I've yet to hear anything sound that mean without an aftermarket exhaust or open headers on any vehicle
Imagine what a bmw 760li would sound like
@@Mensaje22 , if it still ran! Lol.
I would consider a high flow catalytic converter instead. Cats help keep the exhaust note smooth and they serve an emission purpose.
Wow! Fancy seeing you here!
@@thesilentobserver93 I like seeing what other people are up to, can always learn something new 🙂
You’re not gaining any horsepower without a tune for being catless, all you’re doing is increasing the amount of times you’re going to see your check engine light.
Mathis 😂🤣
If there is no downstream O2 sensor behind the cat, it won't throw a code or lower performance. Those only happen when altering cats infront of the downstream as it'll not only throw a code, but also alter the afr because it believes there is still a cat and the O2 is bad. For example, when I had a bad leak infront of my downstream O2, my truck ran very rich and would even flood with gas at times.
I gotta give mad respect to this video .. I like it ‼️
Did you get more power and mpg ? Also did it mess with the computer at all ? I heard it will run better without .
A nice way to ruin a 500+$ part.
800+ $ dollar part in may area
If thats what you are thinking after watching this video, you completely missed the point.
@@elitesniper40 lmao he's doing a cat delete on a fucking ALTIMA LOLOL and your worried about what it's going to sound like he coulda just replaced the cat with a pipe and sold the cat to fix his broke ass catback
@@703Bugeye never said I was worried about anything
why?
Would be way easier with a drill to much banging way to make other things on exhaust come loose or cause a gap somewhere
Thanks alot that really help me out my car had no power and am going to do that in the morning
Joyst International how’d it go?
Dumb asf this won’t gain you shit you’ll lose power lmfao
Adam Wooten ehhh not true it does add tiny bit of horse Power but not as much as just taking it off and putting a straight pipe on it
Need help I used a king Soopers bag and now my car won't start dammit I should have used the Walmart bag FML
Get a target bag, it will run perfect for years
🤣🤣🤣
Shit least u gotta a bag. I live in California. No plastic bags aloud. We have to used weaved bamboo baskets. Since it's a fast renewable resource. I love California. Go gay!,
I am trying to do this not because of the hp because my cat a mess up and it will cost 1k to get new one for my jeep so if I delete it it won't mess up the engine sometime the engine stall cuz of that
You need to put a straight pipe in place of the cat and you need to delete the egr system with a block of plat also remove the smog pump if you have one and install o2 sensor plugs which can be purchased on ebay then you will be ok in the state of MA you can do this if you car is at least 15 years old or older because they do not require emissions testings as long as they are quite so you have to leave the resonator and muffler alone.
Whoever told you a cat costs a grand is pulling your gullible ass around by the dick.
Try RockAuto. Glad my Toyota only has one and it's $115.
Chuck Taylor problem with rock auto or similar catalytic converters is that they are garbage. I have installed off brand cats for customers and had them accuse me of not doing the repair because their cel would come back on in a week. Aftermarket cats use less than the minimum required to get the job done
Very helpful Thanks man.
1.5hp increase. Totally worth it
Every horsepower counts in the ¼ mile tho bro. Even if it's a few half seconds faster. 😅
You’re not doing a decat for hp, you do it for sound!
Gains is gains
If the converter is old or clogged up, its way more than that, plus better mpg.
captainchaos087 1.5 horsepower, or even 10 horsepower, will not remove a tenth of a second off a 1/4 mile time.
I'm a police officer and I've managed to decipher your licence plate.
have you noticed you don't see many muffler shops these days? That is because cars are equipped with catalytic converters. They prevent the formation of sulfuric acid and condensates in the exhaust which used to rust out mufflers and tail pipes.
You dont gain horsepower from this, u gain noise and a but more throttle response depending on the car
You do if they're clogged anyway
yes tf you do more air flow more hp that includes exhaust flow
How to make ur daily driver louder
That cat is unmetered. Just buy a cheap Y pipe without the cat and install. Easier and will give more hp. Did one on my 05 3.5 and loved it. Added power everywhere.
i have the same car, but an 06' SL with the VQ35 aswell. you should do a muffler delete. it sounds amazing! and its not obnoxious.
Tyrese Brazell ricer
im thinkin about taking off the mufflers of my 02 SE vq35, will it turn the ses light? just curious
I just wasted 5 mins of my life. Change the title call it how to gut a catalytic converter. U just lost money when u could of straight pipe and sell the cat. U just threw out platinum which is what inside a cat. 🤦🏾♂️
In some states you have to have a catalytic converter to pass inspection
@@noahcroft6943 yup that's why u have to get two, one for emissions and the other for power lol
@@noahcroft6943 Technically no. One monitor is allowed not to run. You just have to do your drive cycle right.
@@Justnn What state do you live in that cops inspect cat converters :lol:, We have state inspection stickers here.
@@Justnn I personally wouldn't do it, also the car is engineered to have a certain amount of back pressure from the exhaust system. Missing is stupid but broken up like he did? The cat could certainly disintegrate. The exhaust system would have to be removed and inspected to verity. They can't prove he did it. Not saying its right but a straight pipe is a bad idea. Anything over 25 yrs in NY is exempt. Things rot out here, had to buy a new cat for my 96 Explorer, it had a hole. Probably could have welded it , looked pristine inside. Cats in NY and CA cost a fucking fortune too. There is a special part number and it has to be certified. Technically you fail inspection if the numbers aren't visible.
Yes wear a mask. I had a 1983 Saab 900 turbo that I used a 1 1/2 inch wood spade bit to cut a core through the center of the honeycomb cat . Left remainder there. Car ran a lot stronger for next 100K miles but old air cooled turbos only lasted 65K miles. I abused the crap out of the motor as under back seat could turn up boost and I ran 104 Octane booster . Ate up Corvettes , Mustangs and Camaros back then . Also ate up front tires every 20K miles but worth it to see the look on Billy Bob's face.
Wow 😮 it really makes a big difference👌🏻great content bro
"by releasing more air, you should be able to take in more air..." To put this into context, that's like me saying "by farting more, you should be able to breath more."
It's 2 separate systems that make 1 whole system. Deleting the cat, will not let more air into the engine. I would study up a bit before saying something. Don't just believe what someone once told you without verifying. 👍
Doing this has increased hp on my motorized bicycle dramatically, top speed and acceleration. It's because there's less back pressure pushing against the pistons exhaust stroke. Not to get into if any back pressure is necessary, but less is better in this case for getting more power.
@@uknowngamer1017 would a delete destroy the motor to a vehicle
@@lieutenantmikeo5979 a catalytic converter delete? Likely not, unless electronic systems are not adjusted and tell the engine "hey dude, my cat is fucked up!" Consequently sending it into limp mode, but not hurting the engine. If a tune is implemented, the engine will run BETTER. If you mean deleting the exhaust as a whole, it will damage the engine. The extent of which depends on the stroke type and other characteristics of the engine.
Also re-reading this. The original comment sounds more idiotic the older I get. Saying they're two separate systems is so foul. Every system in an engine relates to every other system. From the intake to the headers, from the coolant system to the pistons. They all are integral and affect eachother
Thanks for the information....I deleted my whole exhaust so theres no pipes running off of the cats and I wanted to also remove my cats for my own personal reason(s). I pretty much would only have the headers on the motor and I'm hearing that I could bend something in the motor or have warping so I was just scared to follow through with removing the cats
*Whào!.. made a really good amount of difference. Im surprised! Unexpected!.. sounds alot more sportier, better.* I have a altima se on se-r's. Def gutting out my third cat out next months. Thanks for da example bro. Good shyt.
Removing catalytic converter increases life of car and smooth running
when is the guy going to prison
9:50 I thought it was gon fly😂😂
Sound great! Can't wait to work on my cat for my Ford ranger!! Thanks!!
I straight piped my ‘15 Altima and it’s sound mint‼️‼️
Did it have 02 sensors on the cat? I’m thinking about doing this on my 17’ Sonata, with an upper and lower 02 sensor, may have to get a spark plug defouler for the lower if the cat throws a code.
But without the honeycomb, the car would have a free flowing cat, which is attached to the manifold. Easy enough to get too, but still work to reach.
If I can get the comb popped off/out, I think my exhaust stock will pop with mufflers on.
I'm going to make a correction...deleting the cat only improves outgoing gases, not incoming air. You still need to modify intake if you want it to "inhale" more.
if the exhaust can’t escape you can’t gulp air
That was the slowest fly by ever
I think it would have been easier to use a drill or dremel tool.
Like just for the proper jack, n jack stands setup! I also enjoy the vid, just to make sure! I’ve done the baffles on a motorcycle.
yall are so worried about him removing this one cat. Anyone realize there is two more further up so he really isnt hurting anything.
yes
This will make your car stink did it on my wife's Tucson complained til I put high flow cat on it from flow master lol 🤣
so you created an expansion chamber therby reducing or killing your exhaust scavenging and lowering your horsepower output. But it sounds good, right?
Harry Rathien shhh ricers gonna rice
Thats not going to disrupt scavenging lmao. All it will do is slightly reduce backpresure. If he had a larger diameter exhaust pupe then yes it would reduce scavenging by a small amount but would reduce back pressure by a lot. It helps to add a 4-1 or a 4-2-1 manifold to optimize it
Cats are filled with PLATINUM , Wich is more valuable than gold.... This is why the junkyards want your vehicle with the stock exhaust on it....
They make a killing off that ONE item.
Good job many have slot of comments but would never attempt to do what you did
Because it’s not worth it on a NA car. Loss of power.
Thanks alot for showing the demo
Sale the catalytic converters on eBay. And just weld cheap straight pipe in its place.
Thanks, time to make cash from all the prius cars in my neighborhood
I just hollowed out my cat converter from an 82 Vette over the weekend. I used a hammer, crowbar, and a box to set it in while breaking up the innards. Took about 10 minutes.
I would weld up another section of tube to replace it with. Should take about an hour and you get to keep the cat.
Swat I did.
You should have said it’s illegal in all states be cause it is lol. There are a lot of states that don’t do emissions checks so you can get away with it but if you get caught then you’re breaking federal and state law. Because even though there are no emissions checks it’s still illegal. Plus another hint if you wrap exhaust back to the first oxy sensor and install a oxygen sensor defouler you can clear nearly every check engine light that has anything to do with exhaust emissions because it will come on.
James Wilson i dont think cops take apart catalytic converters
It's not illegal in Alabama
@@luldjay4785 its a federal law meaning it is illegal in Alabama
@@EthanL21800 What law is it? If it's federal law then it may only apply to auto manufacturer? IDK just wondering.
still sounds like shit lol
Some cars will actually loose power doing this, and I would wear a dust mask if you try.
Pretty much any naturally aspirated car.... like an Altima... will lose power.
This kid has watched too much fast and furious
Short of changing other parameters...camshaft..timing..injection timing/volume...inlet tract...all you gain is noise! More noise is not more performace! Std cars are designed to have back pressure. Romve it with no other mods you lose power and drivabilty.
Ang if you run hi flow cats they are not restrictive at all. Even std cats not very restrictive if at all
This is good. It seemed like there was piece of sheetrock stuck in the cat. I have a 2007 Nissan Maxima, just changed the motor at 220, I didnt have to but A mechanic took my old motor apart when he changed the alternator to get to the timing chain that clicked. I wasnt happy since these cars make the ticking noise bc of the timing guide, anyhow that starts around 150k they said the motor that was installed has 77k, but im saying it has 135k since i know the noise of these vehicles. The old motor could have made it to 250k before a rebuild. what can you do. Alternator isnt a joke on these cars by the way.
Just park your car in the hood. Then magically in the morning your CAT will be gone. 😁
SHOUT OUT TO MY AZ FAM!!