Audi A8 Dual Pulley Kit - APR - Press On - Black - ’09-’18. Purpose-built for supercharged 3.0 TFSI A8 models, this dual pulley setup readies your car for calibrated, reliable gains with proper tuning.

The press-on 57.75 mm supercharger pulley replaces the ~63.25 mm factory unit for about 9.5% faster blower speed, while the bolt-on 187 mm crank overdrive adds roughly 15.4%. Combined, the supercharger spins about 26.4% faster than stock. The drive pulley is CNC-machined from billet stainless steel and e-coated black; the crank pulley is lightweight billet aluminum, anodized black, and includes new bolts. The factory harmonic balancer is retained. Belt included. Software is sold separately and specific calibration is required for best results. Tool MS100025 is used to remove the factory drive pulley. At dual-pulley airflow, the stock throttle body can become a restriction; APR’s Ultracharger Throttle Body is recommended to fully realize the setup (check application).

Features

• Press-on 57.75 mm SC pulley and bolt-on 187 mm crank ring
• ~26.4% combined supercharger speed increase (with proper tuning)
• CNC-machined; e-coated/anodized black finishes
• Retains factory harmonic balancer
• Appropriate belt and new crank bolts included
• Requires specific APR software; MS100025 tool for removal

Questions about fitment, tuning, or installation? Call our experts in Austin or the Los Angeles area—we offer in-house installation and customization at both shops: TX 512-982-9393, CA 562-981-6800.

Thinking about 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