Ok, wow! Wasn't looking for an answer on how to totally destroy a thread. I just noticed a dif in my mpg's as far as my dic was reading out. Ok, im wrong, im a noobie...what do u expect? Lol. Thanx for answering my questions and correcting me......I think?? I don't care about the resonator, im not chopping it off. If u want to and thinks it helps, go for it. Im not knowledgeable enough to argue with all of you.