General description Performance Coilovers for BMW 1 Series E82 E88 (2008-2013) are designed to enhance your vehicle's suspension system, providing adjustable height and damping for improved handling and comfort. These coilovers allow for a lowered stance, contributing to a more aggressive look while maintaining driving performance. Technical specifications Height adjustable: Yes, lowering 1-3 inches depending on vehicle models Damping adjustable: 24 levels of rebound damping force Camber adjustable: Front only Spring Rate Front: 8kg/mm (448lbs/in) Spring Rate Rear: 12kg/mm (672lbs/in) Front spring inner diameter: 70.5mm Rear spring inner diameter: 62mm Spring length Front: 180mm Spring length Rear: 230mm Spring Preload advised: 7-10 mm Compatibility and accessories Compatible with BMW 1 Series E82 (2008-2013) Coupe Compatible with BMW 1 Series E88 (2008-2013) Convertible Models: 118d, 118i, 120i, 120d, 123d, 125i, 128i, 135i Package includes: 2x front coil-overs, 2x rear coil-overs,