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The Supertech +1mm oversize Inconel exhaust valve set for BMW M3 S54 includes twelve +1.0mm valves sized to accommodate regrinding or seat work when standard ports require oversize components. Offered as a complete set of 12, these valves match S54 exhaust valvetrain dimensions while preserving the Inconel alloy specification in a direct-fit package.
Supertech BMW M3 S54 Inconel Exhaust Valve - +1mm Oversize - Set of 12
