RR Racing Silicone Radiator Hose Sets are designed to replace OEM rubber hoses. RR Racing Silicon Coolant hoses can be used for both motorsports and daily driving use. RR Racing hoses are made from multi-ply premium grade silicone and reinforced with high-quality polyester which reduces the risk of component failure and enables higher temperature and pressure to be maintained with complete confidence. Please note that Silicone hose is NOT compatible with fuel or oil.