Decreases the diameter of the factory pulley from ~63.25mm to ~57.75mm, which in turn spins the supercharger ~9.5% faster.
*For models with factory bolt-on pulley (3.0T Gen 2 Simos 16.x) - APR Stage II software is required to run any upgraded Pulley configuration and is sold separately - Please see complete description for additional application information
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Since 1997, APR has been paving the way for VW, Audi, & Porsche tuners alike. Whether it be the ground-breaking APR Stage 1, APR Stage 2, and APR Stage 3 ECU software tunes, or the APR K04 turbo upgrades and precision engineered APR downpipes, APR has been at the top of the game since their inception. Twenty years in the scene surely speaks volumes in the fast-paced European aftermarket automotive performance industry. Go APR!
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Manufacturer names and/or part numbers are used only for identification purposes.