Seller notes

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. Don't be fooled by cheap '4-ply' couplers, sellers generally use it as a marketing term to mean quality which is often not the case. Our '3-ply' meet rigorous standards and have been field tested time and time again. Features: Size: 4" Material: 3-ply Pol...

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