APR Supercharger Crank Pulley Upgrade 187mm (Black) for Audi S4 2010-2016. This bolt-on overdrive crank pulley increases supercharger speed for stronger performance with the proper ECU calibration.

By enlarging the factory crank from ~162 mm to 187 mm, the 3.0 TFSI blower turns about 15.4% faster, broadening potential gains with tuning. It mounts over the OEM damped hub to preserve harmonic balance, is CNC-machined from lightweight billet aluminum with an anodized black finish, and includes new crank bolts. APR Stage II Pulley ECU Upgrade is required to support the increased speed.

Features

• 187mm bolt-on crank overlay pulley
• ~15.4% supercharger overdrive
• Retains factory harmonic damper
• CNC billet aluminum, anodized black
• New crank pulley bolts included
• Requires correct belt: RS100003 (with factory SC pulley) or RS100002 (with APR SC pulley)
• Designed for Audi S4 2010-2016 3.0 TFSI

Have questions or ready to schedule? Call our team in Austin, Texas or the Los Angeles, California area. We offer installation and customization services at both shops: 512-982-9393 (TX), 562-981-6800 (CA).

Buying multiple items? Contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov