aFe 46-20210A BladeRunner Intercooler Couplings & Clamps Kit - aFe Tubes OnlyaFe 46 20210A BladeRunner Intercooler Couplings & Clamps Kit aFe Tubes Only Reinforced Silicone: These coupling hoses are constructed from a 5 Ply reinforced high temperature material that meets or exceeds the SAEJ20 standard. Coupling Hoses: Hoses allow 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. Note: This coupling kit