Craven Pulleys for the BMW Mini Cooper are lightened to cut rotating mass, improving engine efficiency and response. Pulleys are precision CNC machined to +/- 0.001" in order to maintain better-than-factory balancing and minimize excess noise. Stock size pulleys are the perfect compromise that allow you to use the existing serpentine belt from your car without under-powering your car's electronics.
Compare the 7lbs. weight of the stock Cooper S pulley or 3lbs. on the Cooper to the mere .875 lbs. of this lightened pulley! mini cooper has a 1.6 16 valve engine as the aveo.