its not a skyline pal lol as for making it go quicker the engines in the Katana arent very quick top end you will only get 50mph max if you keep it as a 50cc.
de-restrict for a start if u havent.. is it the injection or carb model ? light tuning without spending heaps of cash.. sports pipe variator kit bout it rele lol ben.
best to get a 70 first. will be probs cheaper than the pipe and will beat a bike with vari and a pipe on.
