i saw a winning blue rx8 w/ single exhaust conv. at sorrento valley going 5 south. the exhaust was pretty throaty and had a good sound to it, but look fair in size (not too small not too big). i didnt drive the rx8 but i was driving the srt-4. i wanted to know what kind of exhaust its that you had. it was very interesting

 

That was probably Barbara Boehme's car. I don't think she hangs out here. The car is setup for B-stock autocross and I believe the exhaust was custom made by TriPoint.