Improves performance. Proven–great for the street or the track. Increases relaibility and longevity. Restores, replaces distorted and worn-out original rubber mounts and bushings better than new! Each component is engineered to go beyond OEM specs., to improve the design. The three most valuable reasons for using Energy Suspension ® polyurethane components instead of rubber components on vehicles are: PERFORMANCE, DURABILITY and APPEARANCE