The ST X coilover kit for 2009–2013 Mini Clubman (R55) and 2009–2015 Mini Cooper S/JCW (R57) delivers a street-friendly sport upgrade with extensive ride-height adjustability. The system uses a friction-optimized polyamide composite spring perch with embedded stainless insert to prevent corrosion, galvanized zinc-coated struts, and integrated dust protection and sealing to protect internals. Dampers are developed by KW for vehicle-specific tuning.
ST Coilover Kit 09-13 Mini Clubman (R55) / 09-15 Mini Cooper S/JCW Convertible/Hatchback (R57)