The ALTA Performance™ lightened crank pulleys for the MINI Cooper is engineered to increase horsepower and torque. This is achieved by reducing the rotating mass of the crank assembly. Made from 6061T6 aluminum and weighing in at .9 lbs, the ALTA pulley™ is more then 6.2 lbs lighter then the stock crank pulley. The standard diameter pulley is not under driven and will not affect the life of your engine. The pulley is a redesigned, lighter rendering of the stock crank pulley.

The reduction in weight is effectively the same power increase as removing 100 pounds of weight from your vehicle. The ALTA Performance™ pulley will not wear out engine bearings or the oil pump, and will not add any additional vibration or noise.

Aftermarket, under driven, pulleys are prone to charging problems from being excessively under driven. The ALTA Performance™ lightened crank pulley will have no effect on your cars charging system.


Fits these MINI models:
Gen 1: 02-06 Cooper S Hatchbacck + 04-08 Convertible Cooper S: standard OR 2% larger
Gen 2: 07+ Hatchback, 08+ Clubman, 09+ Convertible (standard size only) Priced individually