D2 Racing Air Struts w Vera EVO Management Tesla Model 3 4WD 2017 D2 Racing Sports Air Suspension Air Struts AccuAir Suspension D2 Racing Charger Air Struts with VERA Essential Management D CR 01 1 D2 Race. 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