TT Racing Back Silicone Radiator Hose Kit for Mazda RX7 FD3S FD TT1501BK Made from high quality woven thermoplastic and pure silicone materials to form the highest quality engine hoses and offer longer life expectancy Handmade and carefully inspected High performance and reliability in high pressures conditions Flexible and can handle extreme temperature from -60C to +260C or -76F to + 553F Resistant to UV, water, ozone and oxygen