Wavetrac BMW G80 M3 G82 M4 LSD, BMW G8x M4 225AL (r=3.15) E-Diff [RE-MAP Required]

The Wavetrac BMW G80 M3 G82 M4 LSD is a helical limited slip differential for the BMW G8X M3 and M4 with the 225AL axle, 3.15 final drive. E-Diff replacement.
Wavetrac part number: 30.309.190WK

Wavetrac BMW G80 M3 G82 M4 fitment

Fits: BMW G8X M3 and M4 with the 225AL axle, 3.15 final drive. E-Diff replacement.

Installation notes: Includes block-off plate and hardware. All welded OEM gear assemblies require machine work and installation kits, sold separately. Fitting the Wavetrac requires actuator removal and an ECU re-map to disable the factory e-diff system.

About the Wavetrac differential

Wavetrac designed this differential from a clean sheet, so it brings current gear technology to the market. Internally, the gear tooth forms give more strength and better oil film retention than competitive designs. The gear package is also smaller, which reduces overall mass yet makes it more durable. In addition, Wavetrac put as much material as possible at the side gear and axle interface, because this area matters most when power levels get high.

The Wavetrac BMW G80 M3 G82 M4 unit uses patented technology that mitigates wheelspin when an unloaded wheel condition arises. In fact, it is the only torque-biasing differential on the market that does this. During zero axle load conditions, the Wavetrac cam device acts to create internal load. As a result, it maintains drive on the gripping wheel instead of acting like an open diff and going nowhere.

Wavetrac crafts each differential from the highest quality materials available. The internal gears use high-strength 9310 alloy steel, and the diff bodies come from case-hardened steel billet. To complete the package, every Wavetrac differential uses high-strength fasteners from ARP, the world leader in fasteners. Finally, all Wavetrac differentials include a transferable limited lifetime warranty.

Special order item

The Wavetrac BMW G80 M3 G82 M4 LSD is a special order item, so please enquire for pricing and lead time. We can check the fitment against your VIN or rego number, and we can also fit the unit for you in our Christchurch workshop. Lead times vary by unit, so we quote each order fresh and confirm the delivery date with you before we order. Please note that special order parts may not be returnable.