CravenSpeed Supercharger Pulley MINI S R53 Audi Perrin's pulley is not underdriven

Perrin's pulley is not underdriven and will not affect the life of your engine

You can pull up the plastic ring around your shift boot

technical know-how and impressive performance

SPEC Stage 3 Sprung Hub # SB003S

- 2x Replacement catback bolts w/ nuts

CravenSpeed Supercharger Pulley MINI S R53 Audi Perrin's pulley is not underdrivenGo Faster When you put a smaller pulley on your MINI's supercharger, then the crank spins it faster. When the supercharger pulley spins fast, it creates more pressure (psi). When the supercharger has more pressure, the engine gets more boost. More boost = More Speed Safe for extended Use CravenSpeed's supercharger pulleys are machined to a specific reduction of the original equipment on your MINI's supercharger. It is widely accepted that these sizes