Add-on kit to upgrade your regular rear air to Fast-Up front+rear. Includes Stainless steel air tank (default will mount under left saddlebag with DIRTY AIR 4-valve manifold attached and pre-plumbed), front end components, additional compressor with mounting bracket and all tubing/fittings/wiring to complete install. Also includes DIRTY AIR safety valve. Re-uses your existing rear shocks and compressor to turn your system into an EL GRANDE fast front and rear system. System will run 5/32" airline from valve to front and rear suspension. So if your current shocks are not set up for 5/32", you will need to convert them over to 5/32".