Part Number SF-BM02-14-SP Vehicle 1975-1983 BMW 3 Series Drivetrain RWD Chassis E21 Damper Model Sport Series Damping Adjustability 1-Way: Rebound and Compression Damper Size - Front 52mm diameter Damper Size - Rear 50mm diameter Spring Rates - Front 8 kg/mm Spring Rates - Rear 6
Optional: Aluminum Camber Plates with Pillowball Bushings Top Mounts - Rear OEM (Reuses Factory Mount) Suspension Design - Front True Coilover Suspension Design - Rear Divorced (Separate shock and spring) Fitment Notes -
Chassis W204 Damper Model Sport Series Damping Adjustability 1-Way: Rebound and Compression Damper Size - Front 52mm diameter Damper Size - Rear 50mm diameter Spring Rates - Front 12 kg/mm Spring Rates - Rear 18 kg/mm Top Mounts - Front Standard: Aluminum with Rubber Bushings
Optional: Aluminum Camber Plates with Pillowball Bushing Top Mounts - Rear Not Applicable Suspension Design - Front True Coilover Suspension Design - Rear Divorced (Separate shock and spring) Fitment Notes -
SF Racing Air Struts for 2010-2014 Infiniti M30d Sedan (Y51) Century Part Number SF-BM02-14-SP Vehicle 1975-1983SF Racing Air Struts for the 2010 2014 Infiniti M30d Sedan (Y51) are engineered for enthusiasts who demand premium ride quality, aggressive stance, and full adjustability. Designed to work seamlessly with most major air management systems, these air struts provide the perfect balance between daily drivability and show quality fitment. Whether you're looking to slam your car for a clean stance at a car meet or raise it back up for a smooth ride home,