Check out the Flowmaster 40 series -- that's a great sounding muffler. :thumbsup:
What I had them do was mount the muffler in the stock location, and then Y off after the funky bend past the gas tank to the dual tips. Worked rather well, and sounds great, even on the stock motor. (Can't wait to hear this beast w/ the 3.0L, supercharger, headers, no cats... wow...)
E1