For Audi A6 S4 2.7T PRO Silicone Throttle Body Boot Hose Pipe Y-JIONT 99-02 Made of High Quality Silicone 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