Looking into aftermarket pipes already are ya. Peronsally, I like Yoshimura and M4. The M4's sport mounts are pretty cool. 8)
http://img32.photobucket.com/albums/v95/gixxerman1000/?action=view¤t=000_0211.jpg
http://img32.photobucket.com/albums/v95/gixxerman1000/?action=view¤t=000_0211.jpg