hey guys I'm still new to the mini thing but thanks to all you fellow mini owners I've learned alot here. My ? is I have a 06 jcw checkmate car and was wondering if the factory jcw has a 15% pulley on it? If not would this car benifit from it or should I do something else.Thanks for any input.

 

This has been asked before, you may be able to search for the older threads...I think I remember it to be around 11-12%.

Jump up to a 17 and you will notice more power.

 

Welcome aboard Cessna.

This link has the info you are looking for.

Good luck.

https://www.northamericanmotoring.co...ercentage.html