General description Performance Coilovers for Mercedes-Benz C-Class W205 (2015-2021) RWD C200 C250 C300 C350 are designed to enhance your vehicle's performance and appearance. These coilovers feature adjustable rebound damping and separate height adjustment without changing preload, allowing for a customized suspension tuning experience. Assembled in a dust-free factory, they ensure high quality and longevity. Technical specifications Height adjustable: Yes, lowering range 25-75mm Damping adjustable: 24 levels of rebound damping force Shock structure type: Twin-tube Spring Rate Front: 8 kg/mm (448 lbs/in) Spring Rate Rear: 9.5 kg/mm (532 lbs/in) Spring length Front: 200 mm Spring length Rear: 249 mm Spring Preload advised: 7-10 mm Installation Package includes: 2 x Front coil-overs, 2 x Rear coil-overs, 2 x Allen wrench, 2 x C spanners Usage For comfortable driving, set damping to full soft. For spirited driving, set it to 16 clicks. For occasional track days, set it to full stiff.