Supertech Inconel exhaust valve for Nissan RB25DET NEO with hydraulic lifters is offered as a +1mm oversize item, sold singly for either the driver or secondary side as specified. The listing identifies the valve material as Inconel and notes compatibility with RB25DET NEO engines that use hydro lifters, providing an oversize option for valve seat work or performance rebuilds.
Supertech Nissan RB25DET NEO (w/Hydro Lifter) Inconel Exhaust Valve - +1mm OS - Single (D/S Only)