Supertech black-nitrided intake valve set for Subaru EJ25 engines, sold as a set of 8. These intake valves are provided with a nitride surface treatment and are intended for EJ25 head service or rebuilds where OEM-style intake valves are being replaced. They supply a treated seating surface expected for regular intake valve replacement scenarios.
Supertech Subaru EJ25 Black Nitrided Intake Valve - Set of 8