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Neither of these mufflers are worth anything, you need a muffler that helps creates horse power not just a certain sound

That sounds like car debt

Are you in Puyallup?

Differently one of the best comparison videos. Touché

Glass

He’s wrong you do not need to drop the drive shaft once you remove all three bolts. You have just enough room to get it out of there.

So for me the glass packs do sound really nice and very loud but personally I like them flowmasters because they got a deeper growl to them and personally that's what I want and I will be putting on my 1954 Ford custom line next summer

I think they both sound pretty good. Definitely a far cry from the flowmaster force II cat back system I put on my Durango hemi. I know, completely different animal.

Black Widow makes the truck sound how it was intended. Flowmaster muffler quiets it down to a point it would be for someone who's in their late 80's early 90's.

Looked like Sumner , im just up the hill from there !

Packs always sound better

Nice 👍

I grew up with the sound of flowmasters on my dad’s 1972 and my grandfather’s 1970 Chevelles. Because of that, I prefer the more delicate droning of flowmasters paired with a 350, but revving with glasspacks is just the sound of American muscle.

That is a stunning ‘56 Chevy! Really good video too! Just subscribed. Thanks for posting!

I have driven off with my block heater plugged in a few times

Which glasspacks are those?

Old cars and trucks need glasspacks.

My 55 Chevy 327/350 tranny. has cherry bomb glasspacks, and I love the deep, loud tone. Flowmasters sound a bit dead, a bit better when you nail it tho. I'll keep the glasspacks.

Glass packs

Do you have a crossover pipe?

So hard to choose the glassies are nostalgic but flowies are 👌

Flowmaster all the way

I have had mine 29 years.

In my 57 Chevy two door post back in 1968 i would run glasspacks, but I would burn them out before installing them the sound was sooooo much more radical. I would take and dump gas in them before installation and lightem up and letem burn awhile. Until the red paint burnt off then when I put them on. The sound was so much more profound.

Glass packs hands down

Master, should I choose glass packs or Flowmaster, grasshopper which do you seek most power or serenity?

Nice ride!!! Now for the $64 question, which one do you prefer( I think it's obvious)? They both sound good. I don't like either one of them as much as old school Corvair turbo style mufflers. Choice between these two would be the Flowmasters. Glasspacks are too raspy for my old ears. You're comparing the exhausts with two different set ups on the engine, the injected set up sounds stronger. As a side note(you did ask for opinions 😉) the music in the vid is a needless distraction, not to mention sounds terrible and doesn't add anything to the nature of why a gear head would come in here to hear a high performance street Chevy. Great car, and beard!!

I love the sound of the Flowmasters. But I'm a glass pack guy. Cherry bombs on my '69 Mustang 351 Cleveland!!! Back in '69, I had the opportunity to have impromptu roadside talks with some state employees. Those cherry bombs offered them an opportunity to cite noise rather than speed on several occasions. I think Flowmasters sound a bit deeper which is really good for small blocks.

Glasspack, a low understated rumble...my choice.

Flow master!

Flowmasters are the best sounding muffler in my opinion glass packs suck

With the right cam, pistons, intake and carb.....Flow masters all the way since the 70's! ❤

Ok, I asked my wife which sound she likes better. She did not grow up in that era of hot rods with glass packs so she does not have a biased opinion. She definitely likes the GPs better. 😊

Long tube tuned headers with dual exhaust glasspacks on an old V8 is like music to my ears. I've had Flowmaster 40s before, and at certain RPMs they can start to drone and get on your nerves.

Rev it up baby! Rev it up! Glass packs for the win. I love 1950s cars. Looking to buy one myself.

I think the flowmasters sound better. You can't go wrong with flowmaster for a street cruiser. I do like glass packs on a more rowdy build

Good Ole cherry bombs, and for my money, you can't beat 'em! 👍👍

Flowmasters sound like tinnnnneee s,,,t like the tuner cars tinnnnneee sh,t

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

I'll never understand why some people like the sound of Flowmasters. Yuck.

Glass packs sound better deeper 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. 👌

Cherry Bombs. It's all about the sound, with that distinctive valve pop inherent to any Ford V8. Had a GMC Triple Crown conversion with a 350, would sit outside in the evening drinking beer, just listening to it idle.

Flowmasters (turbo mufflers) sound like a race car. Glasspacks sound like a lawnmower.

will do!

Glasspacks. Straight through design all the way. Flowmasters sound like a popcorn popping

I'll take Flowmasters in my Hot Rods

LOL. I too have a 56 Chevy.... ive had turbos on it for 15 years.... want something .... different..... I was thinking of glasspacks. This helped my decision making. Thanks!.....upadate: I just ordered the glasspacks for mine!!

You just can't beat that classic sound of glass packs

What’s done to engine? Cam?