Audi A8 Quattro Crank Pulley - APR Supercharger Crank Pulley Upgrade 187mm (Black) for 2013–2018 models. A precision bolt-on overdrive pulley that raises supercharger speed for sharper 3.0 TFSI response with proper tuning.

This 187 mm pulley increases the factory crank from ~162 mm, driving the supercharger about 15.4% faster. It installs over the harmonically balanced OE pulley to preserve damping and is CNC-machined from billet aluminum with a black anodized finish. New crank bolts are included. APR Stage II Pulley ECU Upgrade is recommended, and a longer belt is required: RS100003 (factory supercharger drive pulley) or RS100002 (APR supercharger drive pulley). Compatible with single- or dual-pulley setups.

Features

• Direct fit for 2013–2018 A8 Quattro 3.0 TFSI
• ~15.4% supercharger speed increase with tuning
• Retains factory harmonic balancer; true bolt-on
• CNC billet aluminum, black anodized; includes new bolts

Questions on fitment, tuning, or install? Call us—installation and customization are available at our Austin, TX and Los Angeles, CA area shops: TX 512-982-9393, CA 562-981-6800. Buying multiple items? Ask about combined shipping discounts. We install on premises at both locations.

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