Audi S5 Crank Pulley - APR - Supercharger Crank Pulley Upgrade 187mm - Black (2010-2017). This 187mm crank overlay drives the factory supercharger faster for stronger, tune-ready performance on the 3.0 TFSI S5.

By increasing the stock ~162mm crank to 187mm, blower speed rises ~15.4%, delivering a broader torque curve and improved response when paired with the proper calibration. The design retains the factory harmonically balanced crank damper, bolting on top of the OE unit. It is CNC machined from lightweight billet aluminum, anodized black, and includes new crank pulley bolts. APR Stage II Pulley ECU Upgrade software is recommended to manage the added speed. A new belt is required: use RS100003 with the factory supercharger drive pulley, or RS100002 with the APR drive pulley.

Features

• 187mm overlay; ~15.4% faster supercharger speed
• Retains factory harmonic damper; bolts over OE pulley
• CNC machined billet aluminum; black anodized finish
• Includes new crank pulley bolts
• Requires correct belt (RS100003 or RS100002) and matching software

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

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

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