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An aFe Magnum FORCE silicone reducer coupler that transitions from a 4.00-inch to a 3.80-inch inner diameter over a 2‑inch length, offered in black. It is injection-molded for high‑temperature durability and includes standard stainless steel worm‑gear clamps (#060 and #064) for secure, corrosion-resistant connections. Note: not intended for pressurized, turbocharged or supercharged applications.
aFe Magnum FORCE CAI Univ. Silicone Coupling Kit (4in to 3.8in ID / 2in L) Reducer Coupler - Black
