Quote Originally Posted by SlowNA06 View Post
No, he means when you do stupid stuff like remove the resonator or put flowmaster mufflers on, or straight pipe it out the back, or run open headers.
Is there an exhaust that you recommend then to satisfy my needs? Like I said earlier I need new ones since mine are broken due to an accident. I have no intention of removing the resonator, I only want to do what will create an optimal situation. I had set my goal to installing headers. But im getting mixed reviews.

Do headers add performance and MPGs? And will changing mufflers decrease MPGs? I read on exhaust manufactures websites that exhaust replacement will increase MPgs due to reducing restriction of flow. Is tis not correct for our GPs?