I really should just make up my mind, but I can't buy anything yet, and the agony is killing me. One thing for sure is american thunder cat back. What is the deal with the super 40's? Should I try them? I have listened to the clips on the exhaust site over and over, and I think that the catted hpipe and flows on my same year sound the best personally. The offroad one pops and stuff. I really don't want to spend extra money replacing my mid pipe just to get one with cats. Should I just get the offroad pipe and live with it? Or if I just cut out the rear cats on my pipe, how would that sound with an a\t catback? Any body tried that one? Any info is greatly appreciated. Thanks, Chris