wonder what kind of set up he has on exhaust???? double click it.

http://www.youtube.com/watch?v=WGm35QssvsM&feature=PlayList&p=E3C6CB37A1B7DE8E&playnext=1&playnext_from=PL&index=56

sounds like a external dump WG. Just found this link you may like, external dump on evo x.

http://www.evoxforums.com/forums/showthread.php?t=11718