I'm kind of stuck on exhaust as for as sound. My Choice is the specialty z or labree exhaust system, unfortunately I don't know how it sounds. I was wondering if someone in the Philadelphia/nj/delaware area that would be kind enough to meet up with me so I can hear it in person and possibly pick your brain a little. I have no idea what a 500whp z is like but that's the hp goal I have in mind. Would like to keep things At $5k or close to. Oh! May I add, car is pretty much stock. THANKS IN ADVANCE.