The ICON Vehicle Dynamics Coilover CDCV Reservoir Upgrade Kit is used to upgrade a set of ICON internal reservoir coilovers from a 2005-2023 Toyota Tacoma, 2007-2014 Toyota FJ Cruiser, or 2003-2023 Toyota 4Runner to remote reservoirs with CDC Valves during a shock rebuild. The addition of remote reservoirs will greatly increase shock oil volume and heat dissipation surface area to resist overheating and cavitation under hard use, which can lead to damper fade. 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. This kit includes all required components for the CDCV reservoir upgrade including top caps, reservoirs, reservoir brackets, hoses, CDC Valves, seal kits and extension spacers to also convert the coilovers to extended travel units if desired. The ICON Coilover CDCV Reservoir Upgrade Kit is used to upgrade a set of ICON internal reservoir coilovers from a 2005-2023 Toyota Tacoma, 2007-2014 Toyota FJ Cruiser, or 2003-2023 Toyota 4Runner to remote reservoirs during a shock rebuild. TECH NOTE: Requires rebuild of coilovers with some specialty tooling required. Installation by qualified shock technician is recommended.