ICON's exclusive Compression Damping Control Valves are included for precisely dialing in your suspension performance. CDCV controls fluid flow under compression, allowing you to achieve the perfect tune whether driving on the street, slow-crawling through the rocks or mobbing across the desert at full throttle. When paired with ICON 3.0 Series Coilovers with CDCV on the front, vehicle control can be precisely dialed in front to rear, resulting in the best overall driving experience.