Upgrade your BMW rear differential by replacing the factory rubber bushings with precision-machined aluminium mounts. By removing the unwanted flex found in OEM rubber, these bushings transfer power more directly to the wheels, improving throttle response and rear-end stability under acceleration, cornering, and high-load driving.
Ideal for performance and track applications, they help maintain consistent suspension geometry, reduce premature wear of surrounding components, and provide a more connected, predictable driving feel.