1998 2005 VW Volkswagen Passat Sedan FWD D2 Racing RS Coilovers Shocks D2 Racing Challenger Air Struts with VERA Essential Management D DO 01 D2 Racing Air Struts w VERA Essential Management for 2017 2020 Toyota D2 Racing Mustang Air Struts with VERA Essential Management D FO 15 ARE D2 Racing Air Strut Assembly. ABOUT D2 AIR STRUTS D2 Racing Air Struts allow for adjustment through both the lower mount and inflatable air bag portion. Each air shock features a 36 way damping adjustable internal shock design for fine tuning of ride quality and response. Kit Includes: D2 Racing front suspension D2 Racing rear suspension (4) 1 4 tube 1 8 BSPT compression elbows (2) Spanner tools (4) Damping adjustment knobs