The 16% smaller pulley is engineered to enhance supercharger pressure by up to 0.4 bar, delivering an increase of up to 20 horsepower along with a significant boost in torque. When paired with ECU remapping, this setup can yield an impressive total increase of up to 40 horsepower compared to stock configurations. The boost pressure achieved with this pulley ranges from approximately 1 to 1.2 bars.

This pulley is specifically designed to operate within the limits of the stock supercharger, ensuring maximum reliability without risking damage or excessive wear to the supercharger or other components such as the water pump, alternator, and bearings.

Manufactured entirely from aluminum alloy using modern CNC machining techniques and adhering to ISO standards, the design allows for easy installation without damaging the supercharger shaft, thanks to the double clamping taper. Installation requires no special skills and can be completed without removing the supercharger from the engine.

Fits all Mini Cooper S R53

* A shorter belt is necessary to prevent belt slipping.