The Supertech black-nitrided intake valve for Honda D16A6 and D15B engines is supplied as a single replacement item. This valve shippping as a single unit is finished with a black nitrided surface and intended for one-at-a-time valve service. Note the listing indicates drop-ship availability in some cases; check your engine code for fitment compatibility before purchase.
Supertech Honda D16A6/D15B Black Nitrided Intake Valve - Single (Drop Ship Only)