[JonAvalon]

Gruppe-S UEL if you want the UEL sound. It's has a good reputation on the forums for the price (see the vendor thread in the classifieds. Overpipe and thermal coating options available). I'm pretty happy with mine, no install issues and it came with all hardware and gaskets required. I added the thermal coating and oil pan shield to the package as well, great value overall. Of course JDL is also an option, they do great work.