I'm wanting to get a louder sound on my stang, its a v6 and enjoy the good gas mileage but also like the sound of the v8. How much approximately would it cost for... Mac dual exhaust, h-pipe, lt headers, and cats... and also i really want to CAM it but ive heard its really expensive for the parts and installation.. can someone help me out here for an estimate... and will the CAM end up shortening the engine life?? Thanks alot i would appreciate all the help and advice