mufflers?

[87boostedbuick]

hey everyone i have a question for any one that might know i have 2.5 inch exhaust on my car it has glass packed mufflers on it now cheep ones not shure of brand bought the car with them on it but i was thinking of going with somthing like a flowmaster 40 but was told becuase there chambered i would lose performance becuase of the back pressure and i should go with somthing like a magnaflow was just wondering what you guys thought of that and what outher mufflers do you guys recomend? i have had flowmasters before and like how they have sounded on my sbc motors and a supercharged 3.8 but i have also herd they dont sound the greatest on a gn?

 

[QUIP'6']

hey everyone i have a question for any one that might know i have 2.5 inch exhaust on my car it has glass packed mufflers on it now cheep ones not shure of brand bought the car with them on it but i was thinking of going with somthing like a flowmaster 40 but was told becuase there chambered i would lose performance becuase of the back pressure and i should go with somthing like a magnaflow was just wondering what you guys thought of that and what outher mufflers do you guys recomend? i have had flowmasters before and like how they have sounded on my sbc motors and a supercharged 3.8 but i have also herd they dont sound the greatest on a gn?

go with a turbo muffler. preferably dynomax ultra flow or pypes race pro muffler. anything without a chamber will suffice

 

[novaderrik]

my car must be weird, but it gained boost and had faster spool up after i put a Flowmaster replacement crossflow muffler where the stock muffler was. when i got the car, the stock muffler was blown apart, so i just cut it out and ran it with open pipes for a few months. the Flowmaster muffler actually did better than the open pipes. but it's too quiet for my tastes so i might just run straight pipes again some day.

 

[84gnguy]

my car must be weird, but it gained boost and had faster spool up after i put a Flowmaster replacement crossflow muffler where the stock muffler was. when i got the car, the stock muffler was blown apart, so i just cut it out and ran it with open pipes for a few months. the Flowmaster muffler actually did better than the open pipes. but it's too quiet for my tastes so i might just run straight pipes again some day.

my 87 used to have the exact same Flomaster system.
After I removed it and installed the Hooker 2.5" system,I gained major boost and spool up time.Had to re-adjust the wastegate
to get the boost back to 17 lbs.

 

["Turbo-T"]

I had Flowmasters on my TR when I got it. It actually didn't sound bad at all. However a turbo engine prefers the least amount of back pressure possible to function. Therefore since Flowmasters IMO were designed to be used on a low performance engine that you want to "sound good", they're out.

My choice was something that was essentially a straight pipe but quieter, a.k.a. a straight thru muffler. I ended up going with a Dynomax Ultraflow. You can look in one end and see out the other. Not only does it perform better than the Flowmasters but also I've gotten some good compliments.

 

[87boostedbuick]

thanks for your imput guys one more question are these cars loud if you run straight pipes with a performance cat or for that matter no cat or dose the turbo being on the exhaust muffle a lot of the exhaust noise? im not looking to make it rilly loud just want more of a rumble i know with my superchaged regal straight pipes on it wernt that loud at all and when i put a flowmaster on it it didnt rilly change a thing..are the gns the same way?

 

[V8Killer]

go with a turbo muffler. preferably dynomax ultra flow or pypes race pro muffler. anything without a chamber will suffice

+1

FWIW: My car HATED the Flowmaster (flowtrasher) muffler

 

[futten]

seemes like cherry bomb is a good choice they have some pretty good mufflers it seems