Supertech black nitrided intake valves sold as a set of eight for Mazda/Ford Duratec 2.0L and 2.3L applications. The listing identifies these as intake valves with a nitrided finish and the provided quantity of eight, offering a direct replacement valve set where that application and valve count are required.
Supertech Mazda/Ford Duratec 2.0L/2.3L Black Nitrided Intake Valve - Set of 8