The Supertech intake valve set for BMW M50/M52/S50/S52 engines includes twelve black-nitrided intake valves supplied as a set of twelve. Specified for those BMW M-series applications, the valves provide OE-style intake replacements with a nitrided surface treatment, intended for routine engine rebuilds or valve renewal where matched intake components are required.
Supertech BMW M50/M52/S50/S52 Black Nitrided Intake Valve - Set of 12