I have 2005 MCS and i want to upgrade to 15' or 17' pulley. Anyone have an idea of a good shop in chicago area who can do that ?
Welcome to Motoring Alliance. I think there are a few good shops in the Chicago area. If you service your car at the dealership, you can have it installed by the dealer as part of one of the inspection services. If you bring your own parts, the dealer may (at least they do that where I am) bury the labor cost as part of the regular service...which is pretty expensive already anyways. Let's see some pix and more info on your car.
Mini Cooper Independent Repair Shops-- SooperCooperInfo.com check out that link, locate your area and make some phone calls. Install a cold air intake on that MINI with the pulley to really make it SCREAAAM