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The KAVS Motorsport Reduced Supercharger Pulley are manufactured on CNC lathes out of high-quality steel. They all come powder-coated in a nice gloss black with the inside piece coming with a galvanic coat.

  • Increase Torque and BHP by up to 20BHP
  • Easy to Install
  • Big Performance Gains at Cost-Effective Price
  • LIFETIME Warranty


KAVS Motorsport has been established since 1985 and has been developing the R53 BMW mini supercharger Pulleys from 2005. They provide a cost-effective power increase for the supercharger increasing the speed at which it is spun resulting in much more torque especially lower down the rev range where it is needed to most.


Once you have purchased a pulley you can quickly and easily change the size of reduction without having to buy another complete assembly. This could be useful if you wish to track days and fancy a greater reduction in size. Reducing the size of your chargers pulley with improving your horsepower and the rate at which your charger picks up helping improve acceleration. The Pulleys come powder Coated for a durable finish and are inspected under strict accordance with ISO 9001:2008 and ISO 14001:2004 standards.


Note: We highly recommend that you change the spark plugs to colder iridium plugs due to the increased operating temperatures created when running a reduced pulley. We only offer the NGK BKR7EQUP as we believe (and it is highly regarded) they offer the best quality and value for money on the market. When going for a pulley of 17% or me we also advise that the intercooler is replaced to allow for greater cooling capacity 

KAVS Supercharger Pulley Kit

£99.00 Regular Price
£95.00Sale Price
Pulley Size
Belt Required?
NGK BKR7EQUP Spark Plugs Required

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