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The Supertech black-nitrided exhaust valve for Toyota 1GRFE applications is a single +1mm oversize replacement. Finished with black nitride and sold individually, it provides an oversize option for valve jobs and engine rebuilds on 1GRFE engines, acting as a direct replacement for worn exhaust valves while matching the nitrided surface treatment specified.
Supertech Toyota 1GRFE Black Nitrided Exhaust Valve- +1mm Oversize - Single
