Forge Motorsport Upgraded Stainless Steel Supercharger Reduction Pulley

Significantly boost the power output and torque curve of your V6 engine with the premium Forge Motorsport supercharger reduction pulley. Designed to replace the factory-installed drive pulley on Audi 3.0 TFSI platforms, this hardware upgrade features a calculated 9% reduction in overall diameter compared to the original part. Decreasing the outer pulley diameter accelerates the rotation speed of the supercharger rotors at any given engine RPM. This increased speed forces a larger volume of compressed air directly into your intake plenum, delivering faster boost pressure, sharper throttle response, and significant power gains across your entire power band.

Precision CNC Billet Engineering & In-House Development

Unlike lower-quality copies that can suffer from structural fatigue or cause belt slippage, this premium performance pulley is CNC-machined in-house from high-grade stainless steel billet. This manufacturing choice provides superior strength over aluminum alternatives, ensuring the pulley tracks straight and true for a lifetime of hard use. Developed in technical partnership with the Forge Asia tuning division, this reduction profile was extensively stress-tested on their in-house chassis dyno. The kit comes supplied with a genuine Audi replacement drive belt, perfectly sized to accommodate the smaller pulley profile and eliminate any belt slip.

Important Calibrations & Software Adjustments

Installing this high-flow reduction pulley changes the mass airflow characteristics of your induction system. To ensure optimal engine safety, correct air/fuel ratios, and maximize power gains, your engine management software must be recalibrated. We strongly recommend visiting an authorized ECU remapping specialist to upload a matching Stage 2 calibration when installing this hardware upgrade.

Essential Tools & Installation Addons

To safely install this upgrade without damaging your supercharger assembly, you will need the matching specialized extraction tool kit:

Professional Supercharger Pulley Removal Tool Kit - FMSCPS53TIK

Product Quality & Structural Galleries

 

Technical Support & Workshop Services

Review the necessary thermal expansion criteria for fitting the new pulley onto the shaft:

Want your pulley upgrade, belt fitment, and stage 2 ECU software calibration handled under one roof? Schedule an appointment at our advanced tuning clinic.

Vehicle Compatibility Directory

This reduction pulley is verified to fit the following supercharged V6 power plants: