http://www.renntech.org/forums/index.php?showtopic=12589&hl=
Im iffy on it. Im sure its because its facing the microphone and its echoeing, but im sure it sounds pretty mean when taking off. Id go to your local muffler shop and get a custom magnaflow or something. Thats basically the sport exhausts, 2 mufflers connected together. That guy is selling his 20's too.