The Supertech sodium-filled Inconel exhaust valve for Toyota 2JZ applications is a single +1mm oversize replacement. Built as a sodium-filled Inconel valve and sold individually, it offers an oversize option for valve jobs and engine rebuilds on 2JZ engines, serving as a direct replacement for worn exhaust valves while providing the specific sodium-filled construction noted by the manufacturer.
Supertech Toyota 2JZ Sodium Filled Inconel Exhaust Valve - +1mm Oversize - Single