98 WS6

iTrader: (20)

Bought my Z28 with an American Thunder flowmaster catback on it.. I hate flowmaster. My Z28 sounds like a full size SUV is rolling down the block.

Has anyone ever swapped out the muffler for anything else? If not I'm just gonna get BBK LT's & ORY and a cutout.

mjs1012

iTrader: (36)

is the muffler in that exhaust the same size as a stock muffler??

99Bluz28

iTrader: (35)

Dynomax Ultra Flo #17536 (~$116, 409 stainless steel), or Super Turbo #17670 (~$72, aluminized steel).

Either one can be easily installed in place of the FM..

justin hover

Sure...You can swap it...Exhaust shop/fab..
If money permits I'd suggest TD's...I've ditched flowmaster catback for loudmouth, then loudmouth for duals..Sounds amazing

RevGTO

iTrader: (12)

Friend did it with a Magnaflow. The only difference is that the outlet pipes on the FM are 3" and the Mag outlets are 2.5". But he didn't have any issues welding them up.

2win_SS

iTrader: (1)

Put y on the pipe going over axle 3" to 2 2 1/2" pipe going out to bak then run SLP LM1. Great exhaust sound. Unless you get LTs then ther will be RASP.

StainlessWorks

If you are planning to go with Headers, Stainless Works makes a tuned system that keeps the volume under control but provides the flow needed to support the extra power. We do both a 3" catback and a 3.5" system for those of you making real big power.



Also, we do all kinds of custom work so if you needed a muffler built to your own specs (maybe with some help from our engineers), we can take care of you there too.

-Jason

00'TwistedLS1

Your going to have to change ur set up, my buddy ran into the same problem because the thunder series is a cross flow muffler