Supertech black nitrided exhaust valve set for Nissan SR20DE engines. This set includes eight +0.5mm oversize exhaust valves supplied for exhaust service and head work. The black nitrided finish and oversize sizing are provided to match reground seats or when valve sizing must be adjusted during cylinder head refurbishment or routine engine maintenance.
Supertech Nissan SR20DE Black Nitrided Exhaust Valve - +0.5mm Oversize - Set of 8