This is complete rebuild replacement for your factory differential. The rebuild starts with replacing all seals and bearings, then the M Variable LSD unit is completely rebuilt using all new components, and then finally the factory 3.62 gearing is replaced with a BMW Motorsport 4.10 rear gear for quicker acceleration.
The 4.10 gearing is the recommended gear set for 6 speed equipped cars, for SMG cars we recommend the 3.91 rear gearing (ES3195107).
*Differentials ship with out fluid and with out cover*
*Cost includes $750 core charge*
This Part Fits the Following Vehicles