take out the motor and replace it with a hayabusa streetbike engine
then remove the frame and add a lonestar or roll design custom frame
slap some z plastics on it and there ya go the fastest "Z"
lol, that's a lot more complicated than is sounds, and do you mean fastest for.....dragging? sand dragging/dunes? MX? FST 500 kit, new, bigger carb, full exhuast, K&N w/ custom airbox w/ no lid and no snorkle, NOS, there are so many small things that would increase performance, probably have to do something to the frame, need suspension, longer swingarm, all kinds of stuff
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