Silicone Radiator Coolant Pipe Kit Clamps For BMW E46 M3 330/328/325 6cy 1999-2006 1 year warranty For High Temperature and High Boost Application 3-Ply Nylon for Strong Reinforcement and Full 4.5mm Thickness Withstands Operating Temperatures from -65F to 500F Degrees Fahrenheit Working pressure 85 PSI / Burst pressure 245 PSI