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The aFe Magnum FORCE silicone reducing coupler joins 4.00 in ID to 3.5 in ID tubing in a straight, 2.75 in long reducer and is built from a 1-ply reinforced, high-temperature silicone. It ships with stainless steel worm-gear clamps for secure, corrosion-resistant connections, accommodates expansion and vibration, and is explicitly not intended for use on pressurized, supercharged, or turbocharged applications.
aFe Magnum FORCE CAI Silicone Coupling Kit (4in. ID to 3.5in. ID) 2.75in L Straight Reducer - Black
