The Firestone 2500 will allow you to control four springs independently and wirelessly! Firestone air accessory systems provide an instant air source for all air suspension products, including Coil-Rite, Ride-Rite, and Sport-Rite Air Bags. Simply flip a switch and adjust the ride for various loading conditions. The wireless air system by Firestone will come complete with a standard duty compressor as well as all of the air lines and fittings you will need to be on your way to wireless air inflation. One of the advantages that people love about the wireless system is that you can get out of the cab and view your ride height. All-In-One Analog Kit; Incl. Air Springs; Compressor; Air Accessories; All Components For Install;