1300 HAYABUSA TURBO QUAD
http://ruthlessmotorsports.com gives you a glimpse of what a 1300 Hayabusa and a turbo can do. Video was shot at Little Sahara Sand Dunes with the quad running up the face. Crazy FAST!
Yamaha Raptor 700 with Suzuki GSXR 1000 Turbo engine
I think I need a stronger rear axle.