Improve ride quality, performance, and safety with affordable replacement bushing and mount kits by Energy suspension. Long lasting urethane bushing components that are superior to stock rubber parts. You will see the kits available in both red and black. What’s the difference? The black bushings contain a graphite material that is somewhat self lubricating, and the red ones do not. They are exactly the same as it pertains to stiffness, performance, and response.