[BigAls87Z28]

Uh...if I recall, the back end of a car has suspension, and it compresses when you go over bumps. If you go over a speed bump, the rear will compress, bringing the ground MUCH closer to the exhaust. I want to see a picture of it. There is a reason why every car maker in the world as well as every aftermarket manufacture of exhausts have it going over the axle. And what happens when the car lifts and the suspension extends all the way out? Wont it push down on the exhaust?
Way way way too much talk about something as simple as an exhaust system. If you are worried about flow, Im sure that a nice 4 inch system from Mufflex would work just enough. anything more, its a race car and who gives a eff about exhaust.