ARHC is a revolutionary electronically controlled hydraulic system specifically designed for extreme racing environments of today’s track day cars. This is not a leaky, bulky air bag system. ARHC is a very high quality, precise system that allows you to raise and lower your vehicle anywhere from 1 to 6 inches on the fly. Driveways, speed bumps, curbs, trailer ramps are not a problem anymore with TKO MOTORSPORTS ARHC system. System includes 4 custom built to your application and dynoed tko motorsports all aluminum double adjustable ARHC racing shocks complete with springs. All necessary hardware and instructions for installation. All tko motorsports shocks are 100% rebuildable and valve able; these are the last set of shocks you will every have to purchase for your car.