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The Supertech black-nitrided exhaust valve for Mazda Miata 1.6L is a single replacement valve offered in a +1mm oversize to restore proper valve seating during head service. Its black-nitrided finish and oversize option make it suitable for corrective machining and selective replacement. Use it when servicing a 1.6L Miata head to match valve sizes and reestablish reliable exhaust sealing.
Supertech Mazda Miata 1.6L Black Nitrided Exhaust Valve - +1mm Oversize - Single
