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aFe’s Magnum FORCE reducing coupler adapts 4.00 in. ID to 4.50 in. ID with a 3.25 in. length bellow-coupler designed for intake and intercooler plumbing. Molded from reinforced high‑temperature silicone, it allows expansion, movement and vibration while maintaining a secure seal. Corrosion‑resistant clamps are included for tight connections, and the assembly meets or exceeds SAEJ20 standards for durability and heat resistance.
aFe Magnum FORCE Performance Accessories Coupling Kit 4in ID x 4-1/2in ID
