WARNING: This product can expose you to chemicals that are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.The APR Dual Pulley Upgrade System (MS100185) is the ultimate hardware package for maximizing the boost and power potential of the Gen 2 Audi 3.0 TFSI engine. This kit is specifically designed for superchargers equipped with a bolt-on style drive pulley. By combining the 57.75mm upper pulley and the 187mm lower crank pulley, the supercharger spins 26.4% faster than stock, providing massive increases in torque and horsepower across the entire powerband.
The upper drive pulley is CNC-machined from billet stainless steel and e-coated black for a discreet, factory appearance. The larger 187mm crank pulley is machined from lightweight billet aluminum and bolts directly onto the factory harmonic balancer, ensuring engine longevity is not compromised. To maintain reliable operation at these higher rotational speeds, the kit includes a high-performance drive belt sized specifically for this dual-pulley ratio.
Features:
- Dual Pulley Power: Increases supercharger speed by 26.4%, providing the highest level of boost available for the 3.0T platform.
- Gen 2 Compatibility: Specifically for "bolt-on" supercharger hubs (common on later 3.0T CREC and similar engines).
- Premium Materials: Billet stainless steel upper pulley and lightweight billet aluminum lower pulley with weight-saving pockets.
- OEM Integration: Retains the factory harmonic balancer and features black anodized/e-coated finishes for a stealthy look.
- Complete Hardware: Includes the required drive belt and high-strength replacement crank pulley bolts.
Product Contains:
- (1) 57.75mm Bolt-On Supercharger Drive Pulley
- (1) 187mm Overdrive Crank Pulley
- (1) High-Performance Drive Belt
- (1) Set of High-Grade Crank Pulley Bolts
Mandatory for Installation:
- Software: APR Stage II Dual Pulley ECU software is required to manage the increased boost (sold separately).
- Cooling: An upgraded heat exchanger (APR CPS) is strongly recommended to prevent power loss from high intake temperatures.
- Ultracharger Note: To unlock the full power gains of this kit, the factory throttle body must be replaced with the APR Ultracharger, which removes the final major air intake restriction.
Installation Instructions
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