I've read that the 09 CBR600 PCV (or 2010) fits the 04-05 CBR1ks but the deciding factor there is if it didn't (or there was some unseen issue) I'm stuck with a mod I can't return or get running right. So far the Bazazz is good, the lack of map comparison sucks, and the "smoothing" feature is kind of cryptic (to the people like me who don't know but like to tinker). I think the real proof will be with it being tuned proffessionally. I know that goes without saying...out of the box the bike runs great and the Throttle calibration was easier than I remember the PC3 being. I'll keep posting up as I make new discoveries. Hope everyone does the same.