Audi S5 Supercharger Pulley Kit - APR - 57.75mm Press On Underdrive - Black - 2010-2017. This CNC-machined press-on drive pulley reduces the factory diameter to 57.75mm to increase blower speed and unlock tune-ready performance on the 3.0 TFSI.

Engineered by APR, this billet stainless-steel pulley replaces the ~63.25mm OEM unit and spins the supercharger about 9.5% faster. With the proper APR Stage II Pulley ECU calibration, you’ll experience a stronger, more responsive powerband across the rev range. The e-coated black finish offers an OEM-like look, and the robust press-fit design is built for reliability. Press-on applications only.

Features

• 57.75mm press-on drive pulley for Audi S5 3.0 TFSI (2010–2017)
• Replaces ~63.25mm stock; ~9.5% faster supercharger speed
• CNC-machined billet stainless steel; e-coated black finish
• For pressed-on units; use MS100139 for bolted pulleys
• Tuning and new belt required (RS100001 factory crank, RS100002 APR); removal tool MS100025

Have questions or want this installed? Call our Austin, TX shop at 512-982-9393 or our Los Angeles, CA area shop at 562-981-6800. We offer professional installation and customization services at both locations.

If you are considering 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