F20 F21 M140i F22 F23 M240i F30 340i Wavetrac ATB LSD 215K 2.81 Final Drive

Wavetrac ATB LSD built to fit F20/F21 M140i, F22/F23 M240i and F30 340i (including 340iX) with OEM 215K differential housing and 2.81 final drive.

• Patented wave-profile gear design + carbon fibre bias plates for immediate, consistent torque bias
• 9310 steel gears, ARP fasteners, billet steel housing - track-ready durability
• Full assembly and dyno testing completed; drops straight in with no reprogramming
• Fully compatible with factory DSC and traction control - no warning lights or coding

No guesswork. No waiting. Just predictable, lift-off-friendly grip for fast road or track day use.