Every FCS automotive product is engineered to meet O.E.M quality using the lates state of the art manufacturing processes. Engineered to restore a vehicle's original ride, handling and control. The complete assembly unit is easier and faster to install than traditional struts. No spring compress is required. The FCS strut assembly is engineered to meet and exceed O.E. Quality. The components and Valving are designed specifically for each car, truck, Van, minivan or SUV application. The precisely calibrated Valving combinations are individualized for each application T best simulate OE ride and feel. Each assembly included gas-charged MacPherson strut with nok seals, mirror-finished, hard-chrome piston rod, and Japanese oil to insure great seal, long-life and consistent dampening over wide range of temperatures.