Coil-over shocks provide suspension damping and suspend the weight of the vehicle. The integrated coil spring can be adjusted for preload and ride height and come pre-set to level your vehicle right out of the box. The DSC adjuster adds remarkable versatility and precise tuning with a simple twist of either two adjuster knobs offering 10 separate low-speed and 12 high-speed compression levels with a black anodized aluminum reservoir to increase cooling efficiency.