BMW 210mm E46 E60 E90 M3 M5 LSD Wavetrac Helical (30.309.165WK)

A unique helical LSD for late model BMWs. A good option for your E46 M3, E60 M5 or E90 M3 to fix the M clunk problem. This is a quiet, predictable and long-lasting LSD unit. Backed by a strong warranty which is transferrable should you sell the vehicle. The Wavetrac is the only helical design which will not spin the inside wheel should it lift off the road/track. The Wavetrac differs from a traditional helical, and has friction plates fitted which are replaceable.

• Innovative: 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.
• Customizable: 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.