Energy’s Hyper-Flex 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 Energy’s Hyper-Flex components are a great value because not only will it outlast rubber 5 to 1, but are a cost effective performance improvement for your car or truck Whether domestic or import, front, rear or 4WD, old or new, your vehicle will achieve that level of performance that has made Energy Suspension the most asked-for name in performance polyurethane components Having been awarded 10 U. S. Patents proves our innovative designs have set untouchable industry standards as polyurethane continues to amaze the people who work with it Fit type: Vehicle Specific A versatile performance component suitable for cars, trucks, hot rods, and racing vehicles, yet designed for everyday street use. It absorbs vibrations for smooth street driving while being rugged enough for racing. When needed, it features a torque-resistant safety interlock, matching the strength of metal motor mounts. Available in zinc or chrome for early General Motors vehicles, it's made from durable Hyper-Flex(TM) performance polyurethane.