hi i just got hold of 2 standard restricted yamaha sliders from 03. i have driven scooters up here in denmark in about 1 year reatricted :/ they can only drive 30 km/h up here. and now i am just intrested in playing arround . and i just want to ask you how the eaziest way to get a good stunt scooter is. i mean witch rollers and springs. and if you think that i should buy a ned exhaust, cylindre or something.