Audi S4 Supercharger Pulley Kit - APR - 57.75mm Press On Underdrive - Black - `10-`16
Audi S4 Supercharger Pulley Kit - APR - 57.75mm Press On Underdrive - Black - `10-`16
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Audi S4 Supercharger Pulley Kit - APR - 57.75mm Press On Underdrive - Black - 2010–2016. This press-on drive pulley increases supercharger speed for stronger performance when paired with proper tuning.
Reducing the factory ~63.25mm pulley to 57.75mm spins the 3.0 TFSI blower about 9.5% faster. CNC machined from billet stainless and e-coated black, it press-fits to the stock supercharger. For best results, use APR Stage II Pulley ECU software. A new belt is required.
Features
- 57.75mm press-on drive pulley
- ~9.5% faster supercharger speed vs stock
- Billet stainless; black e-coated finish
- Press-on application; use tool MS100025
- Belts: RS100001 (OE crank) or RS100002 (APR); bolt-on uses MS100139
Questions or ready to book? We offer installation and customization in Austin, TX and the Los Angeles, CA area. Call 512-982-9393 (TX) or 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
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562-981-6800 (Signal Hill, CA)
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