As the title says - anyone running a Thrush or a Dynomax muffler? Just a weld-on replacement mainly, or a weld-on in place of a different muffler on another catback. I was gonna run a Thrush Turbo on my Cobalt, but ran a GMPP catback instead. My Dad's '04 Monte SS has dual Dynomax Super-Turbo's, which sound really good, but seem a little quiet. Just curious as to the sound/performance of these mufflers on an Ecotec. I have a 2.4, but this is open to any engine. Sound/video clips would be even better. Thanks!

 

I put a Dynomax Super Turbo muffler on my '07 SS/SC and I love it. It is a bit louder than the stock muffler and sounds a lot better.

I decided to keep the stock resonator on to keep it quiet, and went 2.5" from the resonator to the muffler. If you want it to be louder you can always remove the resonator.

 

the ultraflo is a great sounding muffler

 

i have one, sounds ok, a bit loud for me. i have a clear image stainless header, no cat, magnaflow resonator aswell.