Airmaxxx 400 Pewter Compressor Air Suspension System. Includes: 2 – airmaxxx AM400 Pewter Air Compressors 2 – 1/4″ Stainless Steel Braided Leader Hoses 2 – 1/4″NPT Check Valves 8 – 1/2NPT Brass Valve 2 – Standard 2500 Air Bags 2 – Standard 2600 Air Bags 2 – Premium 40 Amp Relays 150 psi on, 180 psi off, Tank Pressure Switch Black 7 Toggle AVS Switch Box airmaxxx 5 Gallon 9 Port Steel Air Tank airmaxxx Rear Axle 4 Link Kit 2 – Front Upper Bag Mounting Brackets 2 – Front Lower Control Arm Bag Mounting Brackets 2 – Weld-On Over The Axle Bag Mount 2 – Weld-On Upper Frame Bag Mount.