Well, what more to say. you want 2 stroke, a v8 and performance? http://www.youtube.com/watch?v=EmnsXTMLzCE&feature=em-subs_digest-vrecs might need a custom frame to fit in a bike. Engine : Evinrude 300XP -91 The expansion chambers are "home made" by hydroforming. The original exhaust is milled away and the engine block is filled whit plastic. Those expansion chambers are awesome. i want one or three.