Revshift polyurethane differential bushings completely replace the oem rubber bushings on the E46 M3 and Z4M. These bushings stiffen the differential improving the vehicles handling capabilities.
- Will not wear out like oem bushings
- Properly dampens the differential
- Includes new class 10.9 bolts
- Teflon prelube included
- Improves handing
Sold as a set
Please specify the hardness.