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Diamond Eye Performance adapter transitions a 3.5-inch pipe to a 4-inch outlet for exhaust systems, featuring an aluminum construction and a Ford alignment pin notch for correct positioning. Intended to mate differing diameter sections during repairs or modifications, this adapter helps installers align and couple components where a size step is needed while preserving proper exhaust routing.
Diamond Eye ADAPTER 3-1/2in TO 4in ALUM FORD ALIGNMENT PIN NOTCH
