Im with you on the stainless part... cant complain about an exhaust that will never rust. And what I dont understand is how all the "big name" companies DO NOT use stainless piping.

Look into the Borla/Brospeed cat-back, I am not sure if they make it for your car, but if they do, that'd be the one i'd suggest. It uses all stainless piping and a true muffler, so your car wont be loud!