D2 air suspension is designed as an application specific bolt up kit including dampening adjustable shocks. Car can be raised or lowered in 4-7 seconds. 5 GALLON AIR TANK W/ 9 X 1/4 PORT X 1 AIR ZENITH (AZ) HIGH SPEED COMPRESSOR X 1 SNUBBER FOR MOTOR USE X 4 HIGH PRESSURE HOSE FOR MOTOR USE X 1 HIGH–TECH SILENCERS PLATE BASE X 1 120 – 150 PSI PRESSURE SWITCH X 1 PADDLE VALVE SWITCH X 2 200 PSI DUAL NEEDLE GAUGE X 1 PADDLE VALVE SWITCH AND GAUGE BRACKET X 1 35M 1/4 AIR LINE X 1 10M POWER CORD X 1 FUSE BOX X 1 FITTINGS X 1 SHOCK ABSORBERS (INCLUDING TOP MOUNT, SHOCK BODY) WITH 36 LEVELS OF ADJUSTABLE DAMPENING X 4 AIR BAG X 4 INSTALLATION MANUAL X 1