The Supertech black nitrided intake valve for Toyota Supra 2JZ applications is a single replacement valve offered at +1mm oversize for engine rebuilds and valve seat machining. Sold individually, the nitrided finish is noted in the product description. This oversize option helps technicians restore sealing by allowing proper seat recut during refurbishment.
Supertech Toyota Supra 2JZ Black Nitrided Intake Valve - +1mm Oversize - Single