Revshift offset control arm bushings will fit all BMW E30 models, E36, and Z3. Offset control arm bushings came stock on the E30 M3 and 1995 M3. Non-M3 E30's and E36's benefit from these bushings because they increase the caster and improve the vehicle's handling and stability. It is suggested to use a set screw with offset bushings of this design to prevent rotation. See this video for a how-to: Revshift bushing lube included Sold as a pair Lifetime warranty Hardness80A black: Slightly stiffer and stronger than OEM rubber. No additional NVH. Great choice as an upgraded stock replacement (OEM+).95A green: Significantly stiffer and stronger than OEM rubber. Minor increase in NVH. Excellent for enthusiastically driven street cars and track cars.70D white: Drastically stiffer and stronger than OEM rubber. Moderate increase in NVH. Most commonly used on dedicated track cars.(NVH = noise, vibration, harmonics) Learn more about choosing polyurethane here: https://revshift.com/pages/polyurethane