D2 Racing Air Struts w VERA AccuAir e+ Connect Pressure BMW Z4 D2 Racing D TO 16 ART Front and Rear Air Strut Assemblies 1998 2005 VW Volkswagen Passat Sedan FWD D2 Racing RS Coilovers Shocks Basic Air Suspension Kit #AR VO 52 BASIC Volkswagen TIGUAN 4WD D2 Racing Air Struts with Vera Essential Management Tesla Model 3 4WD. 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