System1 Designs 2.25" to 2.0" Inch Black Elbow Silicone Coupler 3 Layers of Polyester Reinforcement High Level 90 Degree Reducer Soft Hose Air Intakes Intercooler Piping System1 Designs line of silicone couplers feature 3 layers of polyester reinforcement and are suitable for applications with boost pressures up to 45psi. They also feature a temperature rating of 428°F for direct to turbocharger installations. Finish up your custom piping with one of our silicone couplers. Use for air intakes, intercooler piping, turbo inlet/outlets and more. ? Features: Finish up your custom piping with one of our silicone couplers. Use for air intakes, intercooler piping, turbo inlet/outlets and more. System1 Designs line of silicone couplers feature 3 layers of polyester reinforcement and are suitable for applications with boost pressures up to 45psi. Leg Length: 3.5" Temp: 428 Degrees F (220 C) Material: 3-ply Polyester Reinforced