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The Supertech black-nitrided exhaust valve for Toyota 4AGE 20V applications is a single +1mm oversize replacement. Finished with black nitride and sold individually, it serves as a direct replacement for worn exhaust valves in 4AGE 20-valve engines, providing an oversize option for valve jobs and engine rebuilds while preserving the nitrided surface treatment specified.
Supertech Toyota 4AGE 20V Black Nitrided Exhaust Valve - +1mm Oversize - Single
