Wavetrac Differential BMW E92 DCT 335iS E8X F10 550i E90 335D (215K w/ welded ring gear) R=2.35-2.81

Fits Welded Ring Gear BMW 215K Axle for FD ratios 2.35 - 2.81

E87/E92 135i/335is DCT

F10 550i

E90 335D

E89 Z4 35i DCT 

All welded OEM gear assemblies require machinework and Installation Kits sold separately. See special notes about these applications

The Wavetrac Differential is the only torque biasing differential on the market with patented technology that mitigates wheelspin when an unloaded wheel condition arises. During zero axle load conditions, the Wavetrac cam device acts to create internal load, maintaining drive on the gripping wheel instead of acting like an open diff (and going nowhere!). Super strong 9310 alloy steel gears are enclosed in case-hardened steel bodies, held together with ARP fasteners. All Wavetrac differentials include a transferable, Limited Lifetime Warranty.

Torque ring gear bolts to 85ft lbs