SF Racing Track Coilovers for 2015-2019 BMW 1 Series 4 Cyl (F20/F21) Hyundai 5 kg/mm Spring Rates -

5 kg/mm Spring Rates - Rear 7 kg/mm Top Mounts - Front Aluminum with Rubber Bushings

SF Racing Sport Coilovers for the 2001-2008 Audi S4 Quattro AWD (B6/8E) are the best coilovers available for street-driven cars

Part Number SF-AU03-16-SP Vehicle 2012-2015 Audi RS4 Quattro Drivetrain AWD Chassis B8/8K Damper Model Sport Series Damping Adjustability 1-Way: Rebound and Compression Damper Size - Front 50mm diameter Damper Size - Rear 46mm diameter Spring Rates - Front 10 kg/mm Spring Rates - Rear 8 kg/mm Top Mounts - Front Not Applicable Top Mounts - Rear Not Applicable Suspension Design - Front True Coilover Suspension Design - Rear Divorced (Separate shock and spring) Fitment Notes -

Part Number SF-BU01-02-SP Vehicle 2009-2016 Buick Regal Drivetrain

Part Number SF-PN04-01-TR Vehicle 2003-2008 Pontiac Vibe Drivetrain

SF Racing Track Coilovers for 2015-2019 BMW 1 Series 4 Cyl (F20/F21) Hyundai 5 kg/mm Spring Rates -SF Racing Track Coilovers for the 2015 2019 BMW 1 Series 4 Cyl (F20 F21) are engineered for enthusiasts who demand precision and control on the track. These coilovers are specifically designed with advanced valving in the struts, delivering superior handling and responsiveness tailored for track racing while still being versatile enough for street use. SF Track Coilovers provide a wide range of ride height adjustability below factory height without