The Supertech intake valve for Subaru WRX 2.0L/2.5L applications is a single black nitrided replacement listed at 37 x 5.96 x 103.85mm with a +1mm head diameter. Sold individually, it provides an oversize intake valve option for WRX valvetrain work where the larger head diameter is required during servicing or component upgrades.
Supertech Subaru WRX 2.0L/2.5L 37x5.96x103.85mm +1mm Dia Blk Nitride Int Valve - Single (D/S Only)