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Engineered to provide the best compromise between performance and reliability for your BMW.

Specifically designed to underdrive the water pump and power steering pump.
These kits provide 10%-20% overall reduction in driving your car's systems and have been dyno tested to provide up to 12bhp power gain, depending on vehicle.

These pulleys work by reducing parasitic losses from the factory over- driven OEM pulleys, so that more power reaches the rear wheels, as well as providing more throttle response.

We purposefully do NOT underdrive the alternator pulley on road cars as this is not a good idea in our view, however we can do this at specific customer request or for race cars.

PLEASE SPECIFY YOUR ENGINE TYPE / SIZE WHEN ORDERING, THANK YOU .


Estimated Volumetric Shipping Weight : 5.00 Kg