The Supertech Inconel exhaust valve for Nissan RB25 applications is a single +1.0mm oversize valve. Supplied individually, this Inconel exhaust valve is intended for use in engine valve replacement or rebuilds on RB25 engines where an oversize exhaust valve is needed to match reworked seats or guides.
Supertech Nissan RB25 Inconel Exhaust Valve- +1mm Oversize - Single