Audi S4 (B6/B7) 4.2L 6MT FRONT (0A3) Wavetrac LSD (40.309.175WK)
Wavetrac Helical LSD
Patented Wavetrac® design automatically improves grip in low traction conditions. This feature is truly innovative and unlike any other torque biasing diff design.
• Superior Materials:
9310 steel gears run in case-hardened billet or forged steel bodies. ARP® fasteners used throughout.
• Maintenance Free:
As supplied new, the Wavetrac® differential will perform a lifetime of service without maintenance or rebuilds.
If desired, you can alter the diff’s behavior to suit your needs using optional components.
• Limited LIFETIME Warranty:
All Wavetrac® differentials include a transferable, Limited Lifetime Warranty.
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