Wavetrac Differential BMW M2, M2C F1X M3, M4 F8X M5 F9X 210 e-diff [re-map required]



Cover plate, snap rings, and cover plate hardware included.
ARP Ring gear bolts are NOT included, see related listing.



All welded OEM gear assemblies require machinework and installation kits, sold separately. Installation of Wavetrac requires actuator removal and ECU re-map to disable factory e-diff system.



Wavetrac® diffs are state-of-the-art helical gear differentials designed, developed, and manufactured in the USA by Autotech Driveline. 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.