I'm sorry about keep asking questions about my exhaust but I'm having trouble convincing my dad that its not that hard to change rollers. I have read the guide and the stage6 street produces quite alot of power for a standard looking pipe. The sitoplus is down on the street but I think it looks better. Would any of these exhausts need jetting changing from a standard de-restricted exhaust and would the rollers or clutch springs need changing. I'm also thinking about the polini no smoking but it is quite expensive and I'm not too sure about the looks. Which out of these three is best that doesn't need rollers or clutch springs changing. Thanks and I'm sorry about all the questions.
in essence but dont quote me you will have to change the rollers on all these pipes as it changes the engine charectaristics eg hp and torque, but the pipe should come with rollers and there not difficult to change
