[christianchevell]

florida smorida, if your car came equipped with cats your supposed to use them via EPA, the exhaust note may change a little without the cats but why? Normal people plan to get headers with high flow cats.........then maybe a x pipe work and cat back if neccessary, as exhaust work should do nothing to your warranty unless you start doing insano stuff like oh say..........muffler delete...illegal, or cat delete....illegal and get pullled over you get a ticket and have to go to court to prove you changed the car back to stock specs fdor having both.