Originally Posted by rav7ks
I have the AA exhaust - great sound but I wanted it a little louder. So I went with an Xpipe with resonators without HFC's(Didn't want the CEL issues). The drone is loud. It's been 2 days- maybe things might settle since I had some things rattle inside the cabin with the vibrations- that was the first day. Today I didn;t have any rattling.
deleting secondary cats barely adds any sound. you mean you still have primary cats? it should just be slightly louder but more aggressive. .... I don't know, don't think mine drones, much, just a slight bit at a few RPM throttle combos.