First, your vehicle is under a federal emissions warranty from the manufacturer. Any modifications will void that warranty. With that said, I'm not sure what you are trying to do. If you want to change the exhaust to increase power, I have to be honest, you won't notice it unless you modify other things on the engine itself which usually results in problems. Does that answer your question?
Tuesday, February 17th, 2015 AT 6:35 PM