Revshift polyurethane differential bushings completely replace the oem rubber bushings on the E46 (not M3 or Z4M). These bushings stiffen the differential improving the vehicles handling capabilities.

• Improves handing
• Will not wear out like oem bushings
• Properly dampens the differential
• Revshift bushing lube included

Lifetime warranty

Hardness
80A Street (Black): Slightly stiffer and stronger than OEM rubber. No increase in NVH. Great choice as an upgraded stock replacement (OEM+).
95A Track (Green): Significantly stiffer and stronger than OEM rubber. Noticeable increase in NVH. Excellent for enthusiastically driven street and track cars.
75D Drift (Teal): Drastically stiffer and stronger than OEM rubber. Moderate increase in NVH. Most commonly used on dedicated drift and track cars.
(NVH = noise, vibration, harmonics)
Learn more about choosing polyurethane here: https://revshift.com/pages/polyurethane

Please specify the hardness