The horsepower ratings between an R1 and a busa arent all that different. They are both wicked fast street bikes, and would make insane powerplants for a quad. Ide opt for the R1, keep it yamaha...even tho Im a kawi fan when it comes to sportbikes. If you really want a head turner drop a ZX-10 engine in her and paint your plastics lime green.
The FAA... not happy untill your not happy
04' Red/White, Full FMF, jetted, K&N cone, YFZ's, ITP T-9 wheels
78' Sierra Classic, "Built" 350, TH350, True Dual Flowmaster 40's
06' Sierra SLT, Leather, Bose, 20's wrapped in Yokohama Avid SUV's...SOLD