Off-Road or On, Get the Maximum in Performance and Durability. Energy Suspension's HYPER-FLEX system performance bushing Master Sets. With just one part number you can replace all of the major suspension bushing components with HYPER-FLEX performance polyurethane. By installing a complete set of ENERGY's performance polyurethane bushings you'll realize an incredible improvement in control no matter what demand you put on your vehicle. This product ships in approximately 1 days