Well, finally broke down and had to buy the exhaust for the 919. Last night I was riding and an old Yamaha race bike ripped by on the other side of the road. At that moment I knew I needed to buy one. Ordered up the Sato carbon fiber exhaust and a PCIII. I don't have the option of a piggy-back system like the Tuneboy, so this was the best that I could do. Also bought my KBC VR-2 Stealth helmet yesterday. I've been waiting over a month for it to come in from backorder, so I said screw it and bought one from a local dealership. I'll get some pics of me and the bike up once the exhaust gets put on.