The KW Coilover Kit - 3978020H is a high-performance suspension upgrade for vehicles. It is designed to improve handling, stability, and overall driving experience. The kit includes adjustable coilover shocks, springs, and other components that allow for customizable ride height and damping settings. The shocks are made of high-quality materials and are designed to provide a smooth and comfortable ride while also enhancing the vehicle's performance. This kit is ideal for those looking to upgrade their suspension for better performance on the track or on the street.