General description Coilover Suspension Lowering Kit designed specifically for BMW E46 M3 models (2000-2006 Coupe and 2001-2006 Convertible). This kit allows for adjustable height lowering between 25-75mm, enhancing the vehicle's center of gravity and aggressive stance. It features a twin-tube shock type for excellent handling and control characteristics across various driving conditions. Technical specifications Adjustable Height: lowering 25-75mm Damping: 24 levels rebound damping adjustable Front top mounts: pillow ball top mount with camber plate Rear top mounts: rubber top mounts Spring rate Front: 8 kg/mm (448 lbs/in) Spring rate Rear: 12 kg/mm (672 lbs/in) Spring length Front: 180mm Spring length Rear: 140mm Shock Type: Twin tube Spring Preload: 7-10 mm Warranty: 2 years for any manufacturing defect Included: 2x front coilovers, 2x rear coilovers, 2x rear spring brackets, 4x rear spring insulators, 2x sway bar end links, 2x C spanners, 2x Allen wrench, 1x sticker Installation