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The Supertech black-nitrided intake valves are a set of twelve made for BMW M3 S54 engines. Supplied as service replacement intake valves, the nitrided finish is included in the product title and the set quantity supports a full-bank replacement where applicable. Use them when performing cylinder-head servicing or valve refresh work on S54-equipped M3 engines.
Supertech BMW M3 S54 Black Nitrided Intake Valve - Set of 12
