it fittted in there ? looks well small ? errmm should fiiiinnaally be gettin my exhaust soon, but after ive bought another bmx, but the exhaust comes with rollers and clutch springs so.... if i have any trouble having to fit em, could you do it ? done exhaust before, tried derestricting but the bolt was machine bolted on so i left it, but know what to do with the rollers, just dunno what im doing with the clutch springs, and also, is it advisable to upjet the carb if i got a new air filter ? someone i know said it would be a good idea ?