lee20ss00

iTrader: (1)

what is the best sounding flowmaster on a camaro ls1?

ls1chris

well most ppl on here will say flowmaster suck on this cars and i agree and also disagre .im not a fan of the 80 series crossflow mufflers on ls1 cars they seem to echo to much but i would buy flowmaster for your car only if you go with the 10 series single chamber flowmaster also known as race flows they sound wicked just go search on the video section they sound great but dont get the 80 series you want like it at least i didnt thats why i switced to true duals

Bo White

iTrader: (59)

The standard 3" single in/out 40 series is my favorite route. Nice, deep big block type sound with better flow than the 80 series.

300bhp/ton

Alot of people with duals swear by the 10 series. I've only heard them in vids but would have to give them the thumbs up but they are loud!

0utlawTorn

iTrader: (1)

Yes the 10 series sound amazing on our cars. I may go with some if I decide on a true dual setup down the road

black01_WS6

iTrader: (13)

they sound the best off the car laying on the ground. the 10 series is the only muffler that sounds good on a ls1 in my opinion.

CAMJAG

iTrader: (34)

Anyone try the Super 40 mufflers on a true dual setup?

slow67

iTrader: (2)

+1 4TW
I know, I've got 'em.

jmm98LS1

iTrader: (28)

Yes, but not on a 4th gen.....there's absolutely not enough room under there for that big of a muffler unless you do some serious smashing of the floorboards.

10 series kick ***, sound clips in sig

bjamick

iTrader: (31)

i just run the true duals with race mufflers and they dump right b4 the axles now that is a loud car...

Rob Hood

I bought the FM AT catback shortly after buying the car new in June 1999. I switched from the cross-flow muffler to an SUV FM application (made my own 2OTL). No change in performance, but I decreased interior db by about 3-5 points.