E90 E92 (M3), E82 (1M) Diff Bushings - Poly Steering Coupler So we designed the original

So we designed the original polyurethane E90 M3 diff bushings

These poly (75D) BMW mounts work together to eliminate virtually all engine and transmission movement for effective power transfer through the drivetrain

Z4 adjustable rear control arms

Military Spec polyurethane with internal interlocking system

E90 E92 (M3), E82 (1M) Diff Bushings - Poly Steering Coupler So we designed the originalReplacing your old, worn out diff bushings with our poly BMW E90 E92 M3 diff bushings will substantially reduce differential movement (deflection) for noticeably improved performance and power transfer to the wheels. Depending on which hardness option you choose, you can achieve anything from a track or drift capable street build to the performance of a purpose built race car. The ability of your car to transmit power to the wheels is directly linked