Energy's Hyper-Flex for the S550 IRS chassis Mustang is superior performance polyurethane which has proven itself under the most demanding conditions on the race track, off-road and street performance driving, Hyper-Flex components do not wear or deteriorate from exposure to undercar chemicals such as oils and coolants and withstand atmospheric conditions like UV exposure and pollutants. Impervious to these elements, Energy's Hyper-Flex components are a great value. Proven on the racetrack as well as the street, the Energy Suspension Hyper-Flex System allows you to replace your mushy rubber bushings with high-performance polyurethane versions. Hyperflex components will not break down or deteriorate from exposure to oils, undercar chemicals, or atmospheric conditions. They also improve appearance over stock and are available in several different colors to suit all of your needs, from show to go.
CA Residents: Cancer and Reproductive Harm WARNING