One of the best comparison vids I've ever seen sir!! Those flowmasters do sound good, different than most.. but those glasspacks take me down memory lane
When it comes down to it, it's a personal choice. They both sound great, but I'm old school. My first car was a '62 Impala with a 327. I put glass packs on it and I loved it. Whenever I hear glass packs, it brings back some good memeories.🙂
@@74dartman13 A lot of people get they’re panties two wadded up over others missteaks. Perhaps their talents could help congress, they seem to really struggle with pronouns lately.
Agreed, I still here some of that 40 series drone. If the 327 had a little more of a hotter cam I’m sure the flows would sound better than the glasspacks
Glass packs have been the muffler of choice for young car enthusiasts for decades now. The cars have changed but every young guy all the way back to the hot rod Era has done a glass pack
nice comparison , I do personally prefer the sound of glass packs but the flowmasters sound nice too . as an early Cougar owner I know all about dragging the collectors too .
@@BigRed_1980 what really gets me about flow-masters is the bottled up, or in other words, engine noise thru a tin can sound effect they mimic under half or full throttle...flowmasters are very aggressive upon startup or driving at very low rpms, but the minute i gave it gas, all flowmasters, aside from the straight thru outlaws, instantly gave me this bottled up or canny sound impression..i ran super 10's and 40's on my old r/t a while back, and must say that my r/t sounded much better with a muffler delete, and the borla proxs's that came on the vehicle when i bought it new....glasspacks are a win/win either way...flowmasters are nice, but the sound that most chambered flowmaster mufflers emit can be a hit or miss for some people since they produce this weird "bottled" up effect..
I hear what your sayin, this car is used primarily as a family cruiser so the Flowmasters work well for it. But, I have a BBC that will be getting new mufflers this year and I have been looking at the Borla’s. What are your thoughts on them for something a bit louder?
@@BigRed_1980 borla pro xs's sound very good at idle, and even under full throttle...they're too quiet for me perferbly but still sound better than most flowmasters hands down..now the Borla Atak's are extremely loud but sound good and with cat and res deletes, you'll stand out much more than people with just straight pipes all the way back from the secondary cats...these days tho, i just run straight thru mufflers..straight thru designs with larger diameter piping usually grants me better throttle response, and less lag at the accelerator..flowmaster exhausts with chambered systems like the 10, 40's, and 44's typically resulted in me loosing low end torque, and most of the people who rode with me noticed it when i ran flowmasters in my old r/t as opposed to my more free flowing muffler delete...borla ataks are hands down the best borlas around, but the straight thru flowmaster outlaws sound good too..
I like glasspacks myself they have a nice throaty sound and I personally think they fit the 50s hotrod aesthetic. Sounds good Either way nice ride! I love videos like this.
One sound that was popular in my hot rod days of the early to mid 70's used long tubes with either Corvair turbo or Hush Thrush style quiet oval (offset in/out, not straight through) quiet(ish) can mufflers, no three hole gasket and one or more thin washers where the gasket used to be, no pipes beyond the end of the muffler. Those sounded incredible. I had a '65 Nova with a built 327, Hooker fenderwells and Corvair turbo mufflers. Tranny was a B/W Super T-10.
I have flow masters on my 59 Ford 352 and I like them fine but like so many of the guys that responded, I am kind of old school myself and I actually like the sound of the glass packs better. Your 56 Chevrolet is really beautiful! I love the color on it as well.
Personally on that era car I like the sound of the glass packs Flow masters sound good But to me it sounds more late sixties than mid fifties If that makes sense
it does cuz I don't think Flowmasters existed then, but glass packs were on any and all kids' cars that would fit them then, even my 55 Ford wagon!! ;D
Glass packs have been the exhaust of choice for young car enthusiasts for decades now. Back in the day the hot rodders loved them, then the pony car guys loved them, and now the tuners and JDM fans love them.
@@prylosecorsomething3194 definitely an oldie but goodie, like the great songs from 60's Motown!! Play them on your stereo system and have the glass packs humming away on your classic American car and you'll have a true "time machine"!! ;D LOL
The headers and tailpipe exit play a part too I’m sure but the flowmasters sound awesome. I just like the more mellow low rumble than the high pitch cackle of glass packs. Thanks for sharing
Though I am not an exhaust expert, I preferred the Flowmaster exhaust better for the same reasons. We seem to be a minority in the comments. This is so subjective. If nostalgia is your priority glass packs seem to win and old cars certainly represent nostalgia. I would tend to let performance take precedence. All things being equal, I still like the Flowmaster. That 327 ci engine I think was a great engine in it's day.
@@johnwidell8092 amen brother, it seems even the newer performance cars have the more high pitched cackle these days. I guess that’s just what most people like.
@@braderrick The great thing is for now we live in a country that you have a choice and options. I fear at some point these iconic automobiles and the internal combustion engine will be regulated out of existence.
@@johnwidell8092 Agreed 100%. Everyone likes something a bit different and is free to choose. It would be a boring world if everyone liked and had the same things I suppose. I think it is becoming a great fear for all of us car enthusiast’s of rules and regulations to come. There may come a time we’d love to hear any good ole internal combustion engine we could. Scary
Stepdad had glasspacks on his Chevy Custom Deluxe when I was a kid in the early 80's. Will never forget that sound!! Back in a different time, us kids would ride in the bed when we went out. Nothing like being in the open air with that sound when he would take off. Nostalgia!
I prefer the flow master's but that's bc I'm into 80s and early 90s fox mustangs and cameros. As far as the 50s cars the glass packs sound more period correct.
My 56 has good old 36 inch glass packs, flow masters do sound great, but my glass packs are from 1987 and are still like new and still sound great in my book.
For me, I like the sound of a V8 with long glasspacks...I remember my little brother had a '78 Chev truck with 12" glasspacks, and it was super loud and obnoxious. I like loud and obnoxious to a point, but this wasn't much different sounding than straight pipe. He took those off and put some 36" GPs on there, and it was PERFECT! once they were broken in, they sounded GREAT. So much smoother, without the infamous "glasspack crack" you get with short ones, yet the truck still sounded mean as hell. Longer length makes all the difference.
I will always prefer glasspacks. I have a 1959 Chevy pickup, CARBURETED 383 small block, 4 speed, long tube headers, and glasspacks. It has not been lowered, and still has the original leaf spring front suspension. I chose to run the exhausts out underneath the rear bumper, with chrome tips on them. It has a custom sliding rear window, which allows me to hear that beautiful sound better. It also has American Racing Torque Thrust 15" wheels, and RWL BF Goodrich Radial T/As. I would never consider using wheels larger than 15" on any car/pickup.
You must be an old guy to appreciate lower rotating mass on a street car. Unfortunately, as a great car designer predicted, the kids that grew up playing with hot wheels will want big rims on their cars, and they do.
@@richardelliott8352 I just turned 64, and I grew up playing with and collecting Hot Wheels. The late '60s/early'70s were the golden age for Hot Wheels. Those huge diameter wheels and tires with 2" sidewalls originated in the ghetto. Criminals of all different persuasions put them on their cars as status symbols. They are called "donks"
The one major advantage of bigger rims is having the room for bigger brake rotors. The big towing brakes on my half-ton saved the idiot that tried to use me for insurance fraud on the highway. However, that's an application where those brakes are expected to be able to stop 17k with some authority. Most cars won't benefit from such a setup unless they're running massive horsepower & torque numbers. However, most newer trucks are already large & heavy enough to make use of larger rotors.
I've always been a glasspack guy. I like the idea of a straight through design without breaking the bank. If you don't like the popping sounds and want a deep / mellow tone, just order the longest ones that you can fit. Happy motoring!
When I was a kid we ran the glass packs backwards. Man we’re they loud. The shorter the louder, but the long ones sounded good to. Lots of different kinds of glass packs and they all sound different. 👍🏻. Not my favourite any more. But still pretty cool.
Yes, they say "if you can remember the 60's you weren't there", but I do remember the sound of my glass packs on my '55 Ford Ranchwagon in the mid-sixties!! ;D LOL
Yup, for old classics you must have the great "manly man" sound, especially when cruising up next to a wimpy EV. And of course, the iconic smell of old car exhaust is all part of the experience..... " I love the smell of burnt hydrocarbons in the morning"!! LOL ;D
@@ronschlorff7089 I can remember getting pulled over on my college campus one night. I’d slowed down between 2 tall buildings and put it in Neutral and was racking out my pipes and loving the sound. Man the way it echoed between those buildings. I can still feel the testosterone running through my veins. 😂 Cop was pretty cool and told me to not do it on campus anymore. 🤣
@@ronniegillaspy yup, campus cops are, or at least were back in the day, usually pretty cool; sort of like Barny Fife, without the one bullet in their shirt pocket! LOL ;D
Thanks for the thumbs up my dad was a exshaust system master always had the best sounding vehicle split manifold on six cylinder 12in glass packs purr like a kitten the good ol days 😀
I have a ‘70 Buick GS 455 Stage 1! I’ve always loved the sound of glass packs. Never been a fan of the “Tinka, Tinka. Tinka.” sound of Flow Masters at idle. Love my 3” tube, reversed 18” glass packs with Bologna Tips (18” hollowed out and chromed). I love the “Old School” raspy sound of the glass packs! Especially the pop and snap of the exhaust when down shifting!
The best sound comparison vid I ever saw. Multiple scenarios and good quality sound. I like the Flow master sound better, always did. Nice car by they way, thanks for keeping it classic and not over modernizing as many chose to do.
I've ran Flowmasters before but never liked the "tinny" sound of chambered mufflers...love the "rasp" of glasspacks or any straight through "packed" muffler...Ole Skool all the way
Glass packs sound great, the Flowmaster does sound pretty good also. Not the normal sound I’m used to with a Flowmaster. Hands down to me, the ol Glass packs are the best. I loved the sound of them in high school, still do!
Oh my gosh you had a 71 year old hotrodder in tears! We had a 56 Chevy 2/10 (ask some of your older friends if you don't know what that model was) with a 265. She would white the pipe on a high speed run and loved to do high speed for sure. Also had a 54 and 55 Bel Aire. Later had a 65 with a stock 283 that was crazy good for stock, a 66 with a 283 and a 66 with a 396. Up until 1970 or so the small block in an Impala in the later incarnations was so sweet. Anyhow the sound of that 327 (God Bless you finally a Bel Air that didn't get and LS or 350 wow) with those Flowmasters was like the heavens opening and the angels singing. A hotrodder's dream music to relive memories to. God bless you, thank you and take good care of yourself, your family and that pretty blue Betsy (that was always dad and my nickname for our Chevys certainly a term of endearment)😍 as we loved and still love those wonderful old cars!
I like them both. One thing I would like to mention about the Cherry Bomb glass packs that I put on my 1960 Corvette is that they got louder over time. At first, they were a bit quieter than I would have liked, but after a couple years, they got louder than I would have liked. I guess the fiberglass burns up over time so the sound level just can't stay at a medium tone.
1:54...NO, I've NEVER done anything like that before! Really like the sound of the Flowmaster's. Thanks for the video. Nice to see a '56 for a change. Always liked them better than the "everything is righteous with a '57"! Not a GM fan, but I do appreciate a good looking American car.
Very through comparison, Red! Nicely done. I had Flowmasters on both my '55 Chevys (2-dr Handyman Surf Wagon w/ 355 and a 2-dr Post w/ Dual-Quad 409). I liked them because they did a good job of picking up the distinct lope of the cam better than g-packs. While g-packs are iconic on old Merc's, post-war Fords and T-Buckets, I've found that the Flowmasters capture the torquey engines of the '60s-70s. (I now have Flowmasters on my '65 Chevy Shortbed's old 'Vette engine.)
Back when I was around 14 I had a friend that lived up the road and his dad gave him his 1974 Chevy k10 short bed and it had the Quadrajet carb and glass packs and every time he left I told him to open it up and I can still remember that sound of that carb and those dual glass packs! I have a 67c10 396 stroker now with flowmasters and I’ve been really considering switching to Glasspacks
Flowmasters sound good for about 6months, then every one I've ever heard starts sounding like you made your muffler from a bunch of soup cans. I've run Flow-Tech Eliminators on my last two Silverados and have also heard some Magnaflows that sound good . For 50's and 60's cars it's Glasspacks all the way.
I always ran glasspacks when my original mufflers gave out. When I was 16, my Dad gave my Mom a 1973 Buick Estate wagon. She had it for a year when the factory muffler rusted off at the outlet (it broke while she was driving it, was hanging down). My Dad was at work, so I went to the local NAPA store and bought a glasspack and installed it--my Mom said the car sounded different and was just a little louder than normal but she kept driving it!
Awesome video and very timely. I bought a 67 Buick Sportwagon that has a nice duel exhaust system with some sort of “turbo” style mufflers. I think they sounds tinny unless under hard acceleration. I’ve got glass packs on my 66 Skylark and 68 LTD which I prefer. You helped make my decision to go with glass packs. I’ve also got a pair of slightly used old school Thrush mufflers in the attic that I’m saving for the right project. Thanks for the info
@@bw3506 I don't remember brother if they had glass or not but I did like sound didn't pop as bad as the glass pack but the glass pack would be there when the tail pipes rusted away.
As a kid growing up we rode the school bus 10 miles each day ! I used to wait for this guy to pass us on his way to high school in a Ford V8 with glass packs ! That was in 63 ! To this day I still remember that wonderful sound ! ❤️
The flow masters were OK at a couple of cases. I liked the glass packs better over all. Love to have that car. Nobody wants dragging headers , that's for sure.
Another vote for the glasspacks. It sounded richer. The bass notes were smooth and present. In comparison, the Flowmaster sounded flat, and somewhat anemic.
My modern ears like the flowmasters. But, glass packs on my dads C10 remind me of my childhood. We would haul a lot of firewood and the sound the old truck made made me smile.
1:50 that gave me anxiety. Glad you caught it. They both sound really good. The Flowmaster is louder. You get more raw engine sound out of it. But it's more labored too if that makes sense. I'm not sure how I would characterize the glass pack, other than that it "purrs" more, and it's surprisingly quiet, at least to what I was expecting. Obviously, the larger diameter exhaust, and different manifold have an effect as well.
I have Flowmaster on my 1977 Malibu --- 406 with large cam, 3 inch custom full exhaust. Damn , its a very sweet sound and get alot of compliments . I also went from long headers to shorty headers. My car pulls really hard and tons of top end power. Really liked you comparison , 40 yrs ago we ran either gas packs, " Turbo mufflers" or the Hemi mufflers. Technology in exhausts have given us alot of choices. FYI, your '56 is very Kool.
Good comparison video. I subscribed. Here is a simple tip I use for the battery tender, I drape something, like a towel, over the steering wheel anytime I connect the battery tender. That way it reminds me the tender is connected when I get in the car. I hope you post more content about the car.
Glass packs by far is better. Install the mufflers as close as you can to the front giving you longer tail pipes gives you the best Cackle. Louder isn't always better, it's the tone of the rumble and cackle that makes that sweet sound.....
Many years ago, I had a 75 Mustang II with the 2.3 L 4-cylinder and 4-speed. At the time, I was working in a shop that did a lot of custom exhaust systems, and my boss allowed the mechanics to work on their cars in the shop after hours. One night, I was feeling adventurous and built a custom dual-outlet header, along with a full dual exhaust with a pair of 18" glasspacks. It sounded great, but too loud to live with. Next night, I modified the system to add 2 more 18" glasspacks at the rear of the car, where the factory muffler originally was. It sounded great. Whenever I "got on it", my friends said it sounded like a Cessna taking off. About a year later I traded it off, but made a deal so that I could keep the exhaust system if I swapped it for a stock exhaust. A couple of months later I sold it and installed it in the guy's car at the shop where I worked. I love glasspacks.
The flowmasters sound better outside the car but the glasspacks sound better going down the road. I prefer the glasspacks they just give you that classic chevy sound.
I love the sound of the flow masters and manifolds it’s got a deep throaty sound and I agree it makes more sense to have the clearances you need when driving. Probably a lot less of a headache too. I wouldn’t change a thing. 👌
Glass packs! 72 Chevelle worked 350, Accel dualpoint and coil. Love them CherryBombs! Was just a good fun combo. HEI and Turbo mufflers just didnt seem to cut the mustard on that car compared to the old school setup. It all depends.
That was a fantastic comparison!! I can't decide! I appreciate both systems, my 77 ford tow truck has glass packs with a 390 sounds awesome and flow masters on my 460 f350 also awesome!!
I prefer glass packs too. Yours sound like they maybe burned out. New packs have a deep mellow sound. I just put long Cherry Bombs on my 454 Chevy pickup..Tis a wonderful Rumble!
I think this video is helping push me back to glass packs. I had glass packs years ago with the rolled tips on my SBF and it sounded awesome, very different. Then I ditched the tailpipes and ran them dumped for awhile(drone central), lost that old Merc lead-sled sound, but still mean. Then I ran the original 40- series with tailpipes which I loved. Maybe I need exhaust cutouts to glass packs like a homemade dual-mode exhaust. Lol
Great video - thanks for taking the time to make it. Both sound good, but I think I like the glass packs a little bit better. They have attitude - a nasty snarl and bark. Kind of unrefined. I like that. :-)
Magnaflow straight flow through with Xtreme sound deadening for me, Choosing the biggest one of there muffler that will fit will keep things Quiet and little back pressure without baffling.
When I was a teenager I had a 66 Plymouth Satellite 361 ci ,3 speed auto . I installed Hooker headers ,with Thrush header mufflers running all the way pass the bumper . At normal driving it wasn't to loud ,but at full throttle, Well let's just say, I got 3 tickets for loud pipes. And one cop said he was a mile down the road when he heard me. 😄
They both sound good. I like the glasspacks because it just sounds right for that era. My uncle had a 56 chrysler imperial with the 354 hemi that had glass packs. Sounded absolutely killer.
Nice 56! And nice solution to prevent dragging headers. I ran Delta 50s behind 390 ci with headers and 2 1/2” pipe for ten years, liked the no-drone and the WOT. Then stroked it to 444 ci, bumped the pipes to 3”, and used delta 70s. Also added a Y-pipe before the mufflers with elec. exhaust dumps. Now thats a tone I love! (when the situation allows)
nah the 40's are actually for guys that think they impress people with louder exhaust and think it makes their cars better than those without loud exhausts.
Like your Chevy even though I'm a Ford guy. Used to run scavenger pipes which hung down under the car just before the exhaust pipes would normally go over the rear-end. I appreciate the nice comparisons.
In my opinion, any hot rod up to about 1972 should run those Cherry Bombs to stay true to the era. But, I do like the sound of those Flows as well....especially that they didn't sound horrible and broken like a Rustang with Flows....awful.
One of the best comparison vids I've ever seen sir!! Those flowmasters do sound good, different than most.. but those glasspacks take me down memory lane
Thank you Kirby:)
@@BigRed_1980 how long are the glass packs that you were running
@@ogphil5600 I did not measure them but about 20" long.
@@BigRed_1980 PURE aural sex!
Is this something that would get me pulled over constantly?
Glasspacks sound like the 60s to me. Just a classic, timeless sound.
When it comes down to it, it's a personal choice. They both sound great, but I'm old school. My first car was a '62 Impala with a 327. I put glass packs on it and I loved it. Whenever I hear glass packs, it brings back some good memeories.🙂
Memeories?
@George Hays oh well...I can't be perfect all the time.🙂
@@74dartman13 A lot of people get they’re panties two wadded up over others missteaks.
Perhaps their talents could help congress, they seem to really struggle with pronouns lately.
@@preachers4135 yep!😁
@@preachers4135 we didn't worry much about pro nouns we was into pro stock To each his own.
Both sound good. For the difference in price, the glass packs sound better to me.
Agreed, I still here some of that 40 series drone. If the 327 had a little more of a hotter cam I’m sure the flows would sound better than the glasspacks
Glass packs have been the muffler of choice for young car enthusiasts for decades now. The cars have changed but every young guy all the way back to the hot rod Era has done a glass pack
nice comparison , I do personally prefer the sound of glass packs but the flowmasters sound nice too . as an early Cougar owner I know all about dragging the collectors too .
The glasspacks do sound nice while accelerating but i love the idle of the flowmasters. They are nice for family cruising:)
@@BigRed_1980 what really gets me about flow-masters is the bottled up, or in other words, engine noise thru a tin can sound effect they mimic under half or full throttle...flowmasters are very aggressive upon startup or driving at very low rpms, but the minute i gave it gas, all flowmasters, aside from the straight thru outlaws, instantly gave me this bottled up or canny sound impression..i ran super 10's and 40's on my old r/t a while back, and must say that my r/t sounded much better with a muffler delete, and the borla proxs's that came on the vehicle when i bought it new....glasspacks are a win/win either way...flowmasters are nice, but the sound that most chambered flowmaster mufflers emit can be a hit or miss for some people since they produce this weird "bottled" up effect..
I hear what your sayin, this car is used primarily as a family cruiser so the Flowmasters work well for it. But, I have a BBC that will be getting new mufflers this year and I have been looking at the Borla’s. What are your thoughts on them for something a bit louder?
@@BigRed_1980 borla pro xs's sound very good at idle, and even under full throttle...they're too quiet for me perferbly but still sound better than most flowmasters hands down..now the Borla Atak's are extremely loud but sound good and with cat and res deletes, you'll stand out much more than people with just straight pipes all the way back from the secondary cats...these days tho, i just run straight thru mufflers..straight thru designs with larger diameter piping usually grants me better throttle response, and less lag at the accelerator..flowmaster exhausts with chambered systems like the 10, 40's, and 44's typically resulted in me loosing low end torque, and most of the people who rode with me noticed it when i ran flowmasters in my old r/t as opposed to my more free flowing muffler delete...borla ataks are hands down the best borlas around, but the straight thru flowmaster outlaws sound good too..
@@notimezforgames1465 I am kind of torn between the Borla Attak or the Borla XR-1. Have you heard these before?
As a teenager and young adult in the late 60's early 70's. Glass packs all the way. That sound brought back some awesome memories!
Flow masters sound good. But I like the Glas packs better a lot better!
I like glasspacks myself they have a nice throaty sound and I personally think they fit the 50s hotrod aesthetic. Sounds good Either way nice ride! I love videos like this.
Definitely like the vintage sound of the glass packs.
I started driving in the 1960's and glasspacks were the thing. Love the sound!
The Glass Packs sound incredible.
One sound that was popular in my hot rod days of the early to mid 70's used long tubes with either Corvair turbo or Hush Thrush style quiet oval (offset in/out, not straight through) quiet(ish) can mufflers, no three hole gasket and one or more thin washers where the gasket used to be, no pipes beyond the end of the muffler. Those sounded incredible. I had a '65 Nova with a built 327, Hooker fenderwells and Corvair turbo mufflers. Tranny was a B/W Super T-10.
👍🏾😎 cool comparison. The flow master sounds good but I guess for me it would be the oldschool glass packs and 🎶🎵🎶🎵👍🏾😎
me too, but that car is sweet.
Thank you 😁
I have flow masters on my 59 Ford 352 and I like them fine but like so many of the guys that responded, I am kind of old school myself and I actually like the sound of the glass packs better. Your 56 Chevrolet is really beautiful! I love the color on it as well.
Personally on that era car I like the sound of the glass packs
Flow masters sound good
But to me it sounds more late sixties than mid fifties
If that makes sense
it does cuz I don't think Flowmasters existed then, but glass packs were on any and all kids' cars that would fit them then, even my 55 Ford wagon!! ;D
Glass packs have been the exhaust of choice for young car enthusiasts for decades now. Back in the day the hot rodders loved them, then the pony car guys loved them, and now the tuners and JDM fans love them.
@@prylosecorsomething3194 definitely an oldie but goodie, like the great songs from 60's Motown!! Play them on your stereo system and have the glass packs humming away on your classic American car and you'll have a true "time machine"!! ;D LOL
Both sound awesome, but I prefer the flowmasters, because they have a deeper growl.
I agree, the flowmasters have a deeper rumble and tone which i like much more over the cackle of glasspacks
The headers and tailpipe exit play a part too I’m sure but the flowmasters sound awesome. I just like the more mellow low rumble than the high pitch cackle of glass packs. Thanks for sharing
Though I am not an exhaust expert, I preferred the Flowmaster exhaust better for the same reasons. We seem to be a minority in the comments. This is so subjective. If nostalgia is your priority glass packs seem to win and old cars certainly represent nostalgia. I would tend to let performance take precedence. All things being equal, I still like the Flowmaster. That 327 ci engine I think was a great engine in it's day.
@@johnwidell8092 amen brother, it seems even the newer performance cars have the more high pitched cackle these days. I guess that’s just what most people like.
@@braderrick
The great thing is for now we live in a country that you have a choice and options. I fear at some point these iconic automobiles and the internal combustion engine will be regulated out of existence.
@@johnwidell8092 Agreed 100%. Everyone likes something a bit different and is free to choose. It would be a boring world if everyone liked and had the same things I suppose. I think it is becoming a great fear for all of us car enthusiast’s of rules and regulations to come. There may come a time we’d love to hear any good ole internal combustion engine we could. Scary
Give me the rumble I agree but it would be a boring world if we all preferred the same thing wouldn't it
The glass packs definitely sound better.
Yeah for now They eventually will burn out and get louder You'll basically will be straight pipes
I agree!
I think sound is objective. 🖤👽
I agree especially on a classic car
I kinda like the more “crisp” sound of the flowmasters. I’ve got a 65 Comet which currently has glass packs. I’m considering changing them over.
Stepdad had glasspacks on his Chevy Custom Deluxe when I was a kid in the early 80's. Will never forget that sound!! Back in a different time, us kids would ride in the bed when we went out. Nothing like being in the open air with that sound when he would take off. Nostalgia!
I prefer the flow master's but that's bc I'm into 80s and early 90s fox mustangs and cameros. As far as the 50s cars the glass packs sound more period correct.
My 56 has good old 36 inch glass packs, flow masters do sound great, but my glass packs are from 1987 and are still like new and still sound great in my book.
For me, I like the sound of a V8 with long glasspacks...I remember my little brother had a '78 Chev truck with 12" glasspacks, and it was super loud and obnoxious. I like loud and obnoxious to a point, but this wasn't much different sounding than straight pipe. He took those off and put some 36" GPs on there, and it was PERFECT! once they were broken in, they sounded GREAT. So much smoother, without the infamous "glasspack crack" you get with short ones, yet the truck still sounded mean as hell. Longer length makes all the difference.
I’m a glass pack guy just love the sound.
I've always loved the sound of a good set of glass packs.
I will always prefer glasspacks. I have a 1959 Chevy pickup, CARBURETED 383 small block, 4 speed, long tube headers, and glasspacks. It has not been lowered, and still has the original leaf spring front suspension. I chose to run the exhausts out underneath the rear bumper, with chrome tips on them. It has a custom sliding rear window, which allows me to hear that beautiful sound better. It also has American Racing Torque Thrust 15" wheels, and RWL BF Goodrich Radial T/As. I would never consider using wheels larger than 15" on any car/pickup.
Sounds like you have a nice truck😁
You must be an old guy to appreciate lower rotating mass on a street car. Unfortunately, as a great car designer predicted, the kids that grew up playing with hot wheels will want big rims on their cars, and they do.
@@richardelliott8352 I just turned 64, and I grew up playing with and collecting Hot Wheels. The late '60s/early'70s were the golden age for Hot Wheels. Those huge diameter wheels and tires with 2" sidewalls originated in the ghetto. Criminals of all different persuasions put them on their cars as status symbols. They are called "donks"
The one major advantage of bigger rims is having the room for bigger brake rotors.
The big towing brakes on my half-ton saved the idiot that tried to use me for insurance fraud on the highway. However, that's an application where those brakes are expected to be able to stop 17k with some authority.
Most cars won't benefit from such a setup unless they're running massive horsepower & torque numbers. However, most newer trucks are already large & heavy enough to make use of larger rotors.
Problem is...there is only one choice for performance tires in 15"....
I've always been a glasspack guy. I like the idea of a straight through design without breaking the bank. If you don't like the popping sounds and want a deep / mellow tone, just order the longest ones that you can fit. Happy motoring!
I had a 72 chevell with cherry bomb glass packs! Love that sound!
I had a 56 Ford Fairlane Convertible with the 312 Thunderbird Engine, Dual Exhaust Glass Pack's... never quite captured that sound again... loved it.
When I was a kid we ran the glass packs backwards. Man we’re they loud. The shorter the louder, but the long ones sounded good to. Lots of different kinds of glass packs and they all sound different. 👍🏻. Not my favourite any more. But still pretty cool.
Thank you for helping me stay glass.
Also an older driver. It's what sounds natural to me. Cheers
Yes, they say "if you can remember the 60's you weren't there", but I do remember the sound of my glass packs on my '55 Ford Ranchwagon in the mid-sixties!! ;D LOL
I like the sound of both but they are different in a good way. If this makes sense the Flowmasters have a "cleaner" sound to them. I like that.
yes, more refined and less "blatting" upon excelleration!!
It depends what you're going for.
I favor something less polished, a little more savage when I put the pedal to the floor.
Actually the glasspack is the one that's "refined". It filters out higher frequencies and lets the deeper notes growl, even if not as loud
I put glass packs on my Roadmaster wagon and the neighbors thought I had put in a mild cam! Best $45 ever
Glasspacks!!! Reminded me of my 1983 GMC Sierra I had. Had dual exhaust with Glasspacks and chrome echo tips. Man I loved that sound.
Yup, for old classics you must have the great "manly man" sound, especially when cruising up next to a wimpy EV. And of course, the iconic smell of old car exhaust is all part of the experience.....
" I love the smell of burnt hydrocarbons in the morning"!! LOL ;D
@@ronschlorff7089 I can remember getting pulled over on my college campus one night. I’d slowed down between 2 tall buildings and put it in Neutral and was racking out my pipes and loving the sound. Man the way it echoed between those buildings. I can still feel the testosterone running through my veins. 😂 Cop was pretty cool and told me to not do it on campus anymore. 🤣
@@ronniegillaspy yup, campus cops are, or at least were back in the day, usually pretty cool; sort of like Barny Fife, without the one bullet in their shirt pocket! LOL ;D
@@ronniegillaspyunderpass were great also
Thanks for the thumbs up my dad was a exshaust system master always had the best sounding vehicle split manifold on six cylinder 12in glass packs purr like a kitten the good ol days 😀
Best exhaust comparison video EVER.
I have a ‘70 Buick GS 455 Stage 1! I’ve always loved the sound of glass packs. Never been a fan of the “Tinka, Tinka. Tinka.” sound of Flow Masters at idle. Love my 3” tube, reversed 18” glass packs with Bologna Tips (18” hollowed out and chromed). I love the “Old School” raspy sound of the glass packs! Especially the pop and snap of the exhaust when down shifting!
The glasspacks fit the character of the car, better. Just my opinion. Sounds great either way! 👍
Nothing like good Ole glass packs love em!
The best sound comparison vid I ever saw. Multiple scenarios and good quality sound. I like the Flow master sound better, always did. Nice car by they way, thanks for keeping it classic and not over modernizing as many chose to do.
Thank you 😊 we definitely tried to keep the car looking like it should but still be able to drive it without worrying about it breaking down.
I've ran Flowmasters before but never liked the "tinny" sound of chambered mufflers...love the "rasp" of glasspacks or any straight through "packed" muffler...Ole Skool all the way
Glass packs sound great, the Flowmaster does sound pretty good also. Not the normal sound I’m used to with a Flowmaster. Hands down to me, the ol Glass packs are the best. I loved the sound of them in high school, still do!
Oh my gosh you had a 71 year old hotrodder in tears! We had a 56 Chevy 2/10 (ask some of your older friends if you don't know what that model was) with a 265. She would white the pipe on a high speed run and loved to do high speed for sure. Also had a 54 and 55 Bel Aire. Later had a 65 with a stock 283 that was crazy good for stock, a 66 with a 283 and a 66 with a 396. Up until 1970 or so the small block in an Impala in the later incarnations was so sweet.
Anyhow the sound of that 327 (God Bless you finally a Bel Air that didn't get and LS or 350 wow) with those Flowmasters was like the heavens opening and the angels singing.
A hotrodder's dream music to relive memories to.
God bless you, thank you and take good care of yourself, your family and that pretty blue Betsy (that was always dad and my nickname for our Chevys certainly a term of endearment)😍 as we loved and still love those wonderful old cars!
I like them both. One thing I would like to mention about the Cherry Bomb glass packs that I put on my 1960 Corvette is that they got louder over time. At first, they were a bit quieter than I would have liked, but after a couple years, they got louder than I would have liked. I guess the fiberglass burns up over time so the sound level just can't stay at a medium tone.
1:54...NO, I've NEVER done anything like that before! Really like the sound of the Flowmaster's. Thanks for the video. Nice to see a '56 for a change. Always liked them better than the "everything is righteous with a '57"! Not a GM fan, but I do appreciate a good looking American car.
2 completely different and distinct sounds. Both sound great
Agreed!
Having both tail pipes aimed straight back will sound different than if they are angled away or down. Both mufflers sounded good!
Great video! Maybe it's my age, but I'd say "Damned the dragging pipes, give me glass packs!"
I prefer the sound of the glass packs
Good video. You didn't mention who's glasspacks. But I prefer them. Chery Bombs rock.
Yes, I think Thrush makes some too!
this really is one of the best exhaust comparison videos i’ve ever seen
Thank you 😊
Very through comparison, Red! Nicely done. I had Flowmasters on both my '55 Chevys (2-dr Handyman Surf Wagon w/ 355 and a 2-dr Post w/ Dual-Quad 409). I liked them because they did a good job of picking up the distinct lope of the cam better than g-packs. While g-packs are iconic on old Merc's, post-war Fords and T-Buckets, I've found that the Flowmasters capture the torquey engines of the '60s-70s. (I now have Flowmasters on my '65 Chevy Shortbed's old 'Vette engine.)
Thank you. Wow a 409….. I would love to put a 409 in our BelAir someday. I just love the look of those 409’s😁
Gotta love the glass packs and definitely a deeper tone. I believe it's the only way to go on any hot rod!
🇺🇲 👌 🇺🇲
The flow master's sound crisper and cleaner ,the exhaust note is on point and fits the look of the car also. Good choice .👍
You just can't beat that classic sound of glass packs
I loved the full comparison but I am sorry, I liked the glasspacks.
Mike
Back when I was around 14 I had a friend that lived up the road and his dad gave him his 1974 Chevy k10 short bed and it had the Quadrajet carb and glass packs and every time he left I told him to open it up and I can still remember that sound of that carb and those dual glass packs! I have a 67c10 396 stroker now with flowmasters and I’ve been really considering switching to Glasspacks
Great comparison but I gave my glass packs up for Magnaflow I don't like the tin can sound of Flowmaster but just my opinion.
Flowmasters sound good for about 6months, then every one I've ever heard starts sounding like you made your muffler from a bunch of soup cans. I've run Flow-Tech Eliminators on my last two Silverados and have also heard some Magnaflows that sound good . For 50's and 60's cars it's Glasspacks all the way.
I always ran glasspacks when my original mufflers gave out. When I was 16, my Dad gave my Mom a 1973 Buick Estate wagon. She had it for a year when the factory muffler rusted off at the outlet (it broke while she was driving it, was hanging down). My Dad was at work, so I went to the local NAPA store and bought a glasspack and installed it--my Mom said the car sounded different and was just a little louder than normal but she kept driving it!
Hard to choose when they both sound good!
Awesome video and very timely. I bought a 67 Buick Sportwagon that has a nice duel exhaust system with some sort of “turbo” style mufflers. I think they sounds tinny unless under hard acceleration. I’ve got glass packs on my 66 Skylark and 68 LTD which I prefer. You helped make my decision to go with glass packs. I’ve also got a pair of slightly used old school Thrush mufflers in the attic that I’m saving for the right project. Thanks for the info
This the Thrush have fiberglass packing in them or are they just circular baffles? I've seen them but never off a vehicle or installed any.
@@bw3506 I don't remember brother if they had glass or not but I did like sound didn't pop as bad as the glass pack but the glass pack would be there when the tail pipes rusted away.
@@rickybrackin543 No problem. They definitely sound good to me either way. 👍
Glass packs will always rule!
As a kid growing up we rode the school bus 10 miles each day ! I used to wait for this guy to pass us on his way to high school in a Ford V8 with glass packs !
That was in 63 !
To this day I still remember that wonderful sound ! ❤️
I do enjoy the way they sound at wide open throttle😎
The flow masters were OK at a couple of cases. I liked the glass packs better over all. Love to have that car. Nobody wants dragging headers , that's for sure.
Thanks 👍
Another vote for the glasspacks. It sounded richer. The bass notes were smooth and present. In comparison, the Flowmaster sounded flat, and somewhat anemic.
Infamous Flowmaster tinny sound
My modern ears like the flowmasters. But, glass packs on my dads C10 remind me of my childhood. We would haul a lot of firewood and the sound the old truck made made me smile.
1:50 that gave me anxiety. Glad you caught it. They both sound really good. The Flowmaster is louder. You get more raw engine sound out of it. But it's more labored too if that makes sense. I'm not sure how I would characterize the glass pack, other than that it "purrs" more, and it's surprisingly quiet, at least to what I was expecting. Obviously, the larger diameter exhaust, and different manifold have an effect as well.
I have Flowmaster on my 1977 Malibu --- 406 with large cam, 3 inch custom full exhaust. Damn , its a very sweet sound and get alot of compliments . I also went from long headers to shorty headers.
My car pulls really hard and tons of top end power.
Really liked you comparison , 40 yrs ago we ran either gas packs, " Turbo mufflers" or the Hemi mufflers.
Technology in exhausts have given us alot of choices.
FYI, your '56 is very Kool.
Good comparison video. I subscribed. Here is a simple tip I use for the battery tender, I drape something, like a towel, over the steering wheel anytime I connect the battery tender. That way it reminds me the tender is connected when I get in the car. I hope you post more content about the car.
I'm a pilot. I'm used to a preflight walk around. 🙄
I have a 3'' exhaust turbo back single exit with just a glass pack in the middle on my WRX. Love how raw they sound for sure.
Flow masters are nice but unless the motor is built they can kind of sound like scraping metal on concrete
Flowmaster has a better tone... they get a bit louder over time just like a glass pack anyways. Never had rust issues with Flowmaster... ever! ❤
Glass packs by far is better. Install the mufflers as close as you can to the front giving you longer tail pipes gives you the best Cackle. Louder isn't always better, it's the tone of the rumble and cackle that makes that sweet sound.....
Many years ago, I had a 75 Mustang II with the 2.3 L 4-cylinder and 4-speed. At the time, I was working in a shop that did a lot of custom exhaust systems, and my boss allowed the mechanics to work on their cars in the shop after hours. One night, I was feeling adventurous and built a custom dual-outlet header, along with a full dual exhaust with a pair of 18" glasspacks. It sounded great, but too loud to live with. Next night, I modified the system to add 2 more 18" glasspacks at the rear of the car, where the factory muffler originally was. It sounded great. Whenever I "got on it", my friends said it sounded like a Cessna taking off. About a year later I traded it off, but made a deal so that I could keep the exhaust system if I swapped it for a stock exhaust. A couple of months later I sold it and installed it in the guy's car at the shop where I worked.
I love glasspacks.
The glass pack sounds awesome.
Excellent comparison!
The flowmasters sound better outside the car but the glasspacks sound better going down the road. I prefer the glasspacks they just give you that classic chevy sound.
I love the sound of the flow masters and manifolds it’s got a deep throaty sound and I agree it makes more sense to have the clearances you need when driving. Probably a lot less of a headache too. I wouldn’t change a thing. 👌
Thank you
Both sound great but I prefer the deeper,fuller,more powerful sounding glass packs.
Man, the sound in your video is great! The car sounds great before and after i find.
Thank you😊
Glass packs! 72 Chevelle worked 350, Accel dualpoint and coil. Love them CherryBombs! Was just a good fun combo. HEI and Turbo mufflers just didnt seem to cut the mustard on that car compared to the old school setup. It all depends.
That was a fantastic comparison!! I can't decide! I appreciate both systems, my 77 ford tow truck has glass packs with a 390 sounds awesome and flow masters on my 460 f350 also awesome!!
I prefer glass packs too.
Yours sound like they maybe burned out. New packs have a deep mellow sound. I just put long Cherry Bombs on my 454 Chevy pickup..Tis a wonderful Rumble!
That sound difference might just be from the different engine size
I have the same car and I think I'll go with the glass packs in mind thanks for your video it helps a bunch
I think this video is helping push me back to glass packs. I had glass packs years ago with the rolled tips on my SBF and it sounded awesome, very different. Then I ditched the tailpipes and ran them dumped for awhile(drone central), lost that old Merc lead-sled sound, but still mean. Then I ran the original 40- series with tailpipes which I loved. Maybe I need exhaust cutouts to glass packs like a homemade dual-mode exhaust. Lol
Great video - thanks for taking the time to make it. Both sound good, but I think I like the glass packs a little bit better. They have attitude - a nasty snarl and bark. Kind of unrefined. I like that. :-)
Never liked the sound of a Flowmaster or any other chambered muffler. Glasspacks on a classic or keep it quiet.
Great comparison! I love the glass pack sound, but find FlowMasters more comfortable to live with. Enjoy!!
Magnaflow straight flow through with Xtreme sound deadening for me, Choosing the biggest one of there muffler that will fit will keep things Quiet and little back pressure without baffling.
I like the Glass Paks. I also like the bow tie dash.
Thank you. The bow tie dash is out of a 55 but we really like it😃
When I was a teenager I had a 66 Plymouth Satellite 361 ci ,3 speed auto .
I installed Hooker headers ,with Thrush header mufflers running all the way pass the bumper .
At normal driving it wasn't to loud ,but at full throttle,
Well let's just say, I got 3 tickets for loud pipes.
And one cop said he was a mile down the road when he heard me.
😄
Had that happen before when I had Thrush glasspacks on my Camaro, the cop told me he heard me coming a mile away 😆
I love Flowmaster, I’ve had them on several trucks and they never disappoint! They sound mint on your classic!!
Thank you 😁
I put Flowmasters on my '70 BB Chevelle, and added a cross flow pipe. Outstanding sound!
Glasspacks sound so good 👌
They both sound good. I like the glasspacks because it just sounds right for that era. My uncle had a 56 chrysler imperial with the 354 hemi that had glass packs. Sounded absolutely killer.
Both sounded real good at high rpm but I prefer those glasspacks. I'm thinkin of putting glass packs on my Gran Torino if my dad will allow me to
A straight pipe would sound better.
Love the Flowmaster sound above the glass packs & definitely above Borla.
Thanks, I am considering Borla XR-1's for my truck but I want to hear them in person first. Thanks for the input.
I now want a barn.
Nice 56! And nice solution to prevent dragging headers. I ran Delta 50s behind 390 ci with headers and 2 1/2” pipe for ten years, liked the no-drone and the WOT. Then stroked it to 444 ci, bumped the pipes to 3”, and used delta 70s. Also added a Y-pipe before the mufflers with elec. exhaust dumps. Now thats a tone I love! (when the situation allows)
The glass pack are for hot boys, 40s are for grown men... 😂😂
nah the 40's are actually for guys that think they impress people with louder exhaust and think it makes their cars better than those without loud exhausts.
@chrisfaub4071 😂
Like your Chevy even though I'm a Ford guy. Used to run scavenger pipes which hung down under the car just before the exhaust pipes would normally go over the rear-end. I appreciate the nice comparisons.
In my opinion, any hot rod up to about 1972 should run those Cherry Bombs to stay true to the era. But, I do like the sound of those Flows as well....especially that they didn't sound horrible and broken like a Rustang with Flows....awful.
Love the glass packs. I drop mine from three to four feet before installing them on my daily drivers.