i think we are gonna have to wait on some of the big boys to make test pipes and catbacks.
ill probably go custom 3" catback keep the cat...for noise sake haha
yeah im getting a catback made in a month or two. have a decent quote from a guy. trading a full recondition on his truck for an exhaust. everyone loves to trade things for detail jobs hahaha
Don't need a J-tube (IMHO of course) factory cat back actually quells the resonance quite well also I've never heard of that issue with Cobalt SS's I had one that I did a decent amount of work to never had an issue, then again I did have a cat back on that car still as well.i hate J-tubes is the reason im keeping my cat haha
also alot of the Cobalt SS's ive seen catless 3" blow turbo seals without a little bit of backpressure.