The Supertech black nitrided intake valve for Toyota 2RZ‑FE and 3RZ‑FE applications is a single replacement valve offered at +2mm oversize for substantial seat machining during rebuilds. Supplied individually, this larger oversize option provides extra material for regrinding seats. The nitrided finish is noted in the description for treated valve surface preference.
Supertech Toyota 2RZFE/3RZFE Black Nitrided Intake Valve - +2mm Oversize - Single