aFe BladeRunner Intercooler Coupling Kit for Cold Charge PipeFord Diesel Trucks 17-25 V8-6.7L (td)This coupling is constructed from high temperature 5 Ply polyester reinforced silicone material. This hose allows for expansion, movement, and extreme vibration between two hard pipes while reducing the possibility of connections coming apart or having your pipes or other equipment break. Directly replace your Super Dutys aging, dried out factory charge pipe couplers with aFe POWER's BladeRunner tear resistant silicone coupler kit. Silicone Coupling