This is a new plunger/barrel assembly for your Powerstroke injector. The plunger is DLC coated for longevity. Chose the type you need from the drop down menu.
From Gearhead Automotive Performance:
90cc stock nozzle 225HP
130cc stock nozzle 260-290HP
160cc stock nozzle 325-345HP
160cc 30% nozzle 350-360HP
180cc stock nozzle 300-350HP
180cc 30% nozzle 370-390HP
180cc 80% nozzle 400-425HP
200cc 30% nozzle 385-410HP
200cc 80% nozzle 400-440HP
200cc 100% nozzle 420-460HP
238cc 30% nozzle 440-475HP (depends on air flow in lower rpms can make 550HP with nitrous for example)
