Features: 5-PLY reinforced high temp silicone couplers set. Coupler hose allows for expansion, movement and vibration between two hard pipes.. aFe replacement coupling kit. These coupler hose features 5-PLY reinforced high temperature material which meet or exceed SAEJ20 Standard. Allow for expansion, movement, and extreme vibration between two hard pipes while reducing the possibility of connections coming apart or having your hard pipes or other equipment break. Note: This coupling kit fits aFe intercooler tubes only.