Powerflex differential bushings for your E46 M3. Increase performance and longevity of the life of your differential mount. The stiffness of the mount is designed specifically for each application. All Powerflex bushings come with lubrication grease, however due to the design of the bushings, they will rarely need to be relubricated after initial install. Powerflex bushings also come with a lifetime warranty.
**NOTE: These mounts are stiffer than the stock rubber and will increase noise in the cabin of the vehicle.