FOX 2.5 Factory Series Coil-Over Remote Reservoir Shock. patented race-dominating position sensitive damping technology and performance in a hassle free bolt-on kit. Patented, position sensitive internal bypass technology contains internal passages that allow fluid to bypass the piston through regulated ports as it moves through the travel. They allow for a plush predictable ride over normal offroad driving conditions and also have the ability to ramp up damping force for extreme use. These heavy-duty, steel-bodied shocks are loaded with anodized billet aluminum components and race-bred internal valving. They are designed to bolt right on with your aftermarket long-arm suspension lift kit. Large 2.5 inch remote reservoirs with a large -10 hose increasing the shocks cooling capabilities. The FOX 2.5 Factory Series Coil-Over Remote Reservoir shocks utilizing all of the same components form our race winning Trophy Truck shocks with stainless steel shock shafts, PTFE-lined spherical bearings, proprietary racing oil and high-temp Viton® seals. Before any of our shocks reach production, they've had to stand the test of time and live up to incredible abuse by the fastest athletes in racing. We push the boundaries to give you that same precise control and race-proven performance you can feel. Our bolt-on Factory Series Coil-over Reservoir shocks provide improved damping in any terrain. Coil-over shocks provide suspension damping and suspend the weight of the vehicle. The integrated coil spring can be adjusted for preload and ride height and come pre-set to level your vehicle right out of the box. Experience for yourself the incredible performance and precise control that Factory Series Coil-overs Reservoir shocks deliver.