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Product description

USP Motorsports is pleased to introduce Wavetrac differentials for your vehicle. After years of testing these differentials in our shop cars they have received the USP stamp of approval. Wavetrac differentials are perfect for lightly modified to purpose built race cars. Using a unique and proprietary torque biasing design, these differentials are able to minimize wheel spin and provide superior traction. Whether you have a daily driver, drag car, or road race car the Wavetrac differential will enhance your driving experience.


Product Features:

- Innovative: Patented Wavetrac design automatically improves grip in low traction conditions. This feature is truly innovative and unlike any other torque biasing differential design.

- Superior Materials: 9310 steel gears run in case hardened billet or forged steel bodies. ARP fasteners are used throughout

- Maintenance Free: The Wavetrac differential will perform a lifetime of service without maintenance or rebuilds.

- Customizable: If desired, you can alter the differential’s behavior to suit your needs using optional components.

- Limited LIFETIME Warranty: All Wavetrac differentials include a transferrable, limited lifetime warranty.


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20.00# 12.00x12.00x12.00

Wavetrac Differential: Rear For Audi A4 Quattro

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MFG# 40.309.170WK
SKU# 2015

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  • Cars This Fits ...

  • Make Model Year Engine
    Audi A4 B6 (02-2005) 1.8T (Quattro)
    Audi A4 B7 (05.5-2008) 2.0T FSI (Quattro)