[nkaminar]

I have the plain steel Aries performance muffler and tail pipe on my Fordor and am very happy with it. The fit is good, the sound is good, and it seems to help my performance. I found that the stock clamp at the rear is designed to allow the tail pipe to move. The clamp that came with the car was not a reproduction of the stock clamp and it did not allow the tail pipe to move.

I experimented with a straight through exhaust pipe and tube headers, but aside from being noisy it was not any different than the stock exhaust manifold and Aries muffler. I think if you are racing and run up around 8,000 rpm, the header and open exhaust probably has some advantage.