Get real performance for both on the road and off. Popular performance car, truck and SUV applications. A real must for competition use- or just for that seat-of-the-pants fun. Increases vehicle stability and control as well as durability. Reduces wheel hop and traction loss. Proven for many years, by both professional and amateur racers alike. Both restores and improves better than new. Made of Energy’s Hyper-Flex(TM) performance polyurethane. Heavy duty metal components are used for increased strength, when applicable.