i have a 07 cobalt ls with a automatic im looking to change out the muffer or exhaust system what would be a good muffler with my automatic cobalt

 

I'd go with the 2.6 pulley from ZZP. Sounds great.

 

Well if you have no mods, go for a gmpp catback. Most others sound like fartcans lol. GMPP sounds good with a wot, and gives a more aggressive sound. And under normal driving, its a little louder than stock, which is nice on a stock NA. its what I have and i like it.

 

that is funny

 

Corsa sounds wonderful, but its expensive because they spend some time R&D'ing so its a no drone exhaust

 

Flowmaster 60 series.

 

Magnaflow 5x8x14 with offset/center config in 2.25'' in/out size.

 

im gonna go with zzp longtube header and 3" cat back, but i also plan to supercharge my car afterwards.