The Supertech black nitrided intake valve for Peugeot 306 XU1J4RS applications is supplied as a single replacement valve and offered via drop-ship. With the nitrided coating noted in the description, this valve is intended for intake-side service or cylinder head rebuilds on compatible 306 XU1J4RS engines.
Supertech Peugeot 306 XU1J4RS Black Nitrided Intake Valve - Single (Drop Ship Only)