Revshift polyurethane rear subframe bushings completely replace the oem rubber bushings on the E46 (323, 325, 328, 330, M3, Z4). These bushings stiffen the subframe mounting points improving the vehicles handling capabilities. Improves handing Will not wear out like oem bushings Properly dampens the rear subframe Revshift bushing lube included Lifetime warranty Formula Drift Spec Subframe to chassis clearance is specified for the E46 in the Formula D rule book. We designed these bushings to comply with the FD specs. They will pass tech in all FD sanctioned drift series. Sold as a set Hardness80A 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
