thanks for the help!!!I have one. It's a 13 inch carbon fiber bolt on and is currently on my 04 GSXR 750 that I just picked up. It was originally on my 03 GSXR 1000, but I couldn't stand the huge stock exhaust my 750 had on. I love this exhaust. It sounds better than the yoshi in my opinion. I'm in the process of purchasing another LOR exhaust for my 1000. I'm debating whether to get the 10 inch bolt on or the 10 inch slip on version for the 05-06 GSXR 1000.