I have a full Akrapovic "race" system, which by their standard simply indicates that my system has a FULL Ti can. That means the end caps (inlet/outlet) are made from Ti, as is the mid-pipe, the header however, is Stainless Steel. The fit was perfect, the can is closer at the back than stock, and a little higher. The oil filter comes right out, and this has got to be one of the quietest "Race" systems out there. If power is what your looking for, I got plenty of that when I added this system. The only other mods I have done are a BMC filter and the removal of the PAIR valve. My bike easily walks away from a stock Busa at any speed in any gear. I'm happy with it, and should have some photos posted real soon. If you want an Exhaust give Rick or ward a call at Competition Werkes (competitionwerkes.com) a call 800-736-2114. I think it was around $875.00. These guys also make a sweet under fender kit which I will also post with my photos as soon as I get them developed and scanned.