Not considering running the 6.7 injector just trying to get an idea on how much loss I will have running the 03/04 143* injectors in a 6.7 and if I should consider buying a set of nozzles.To answer your question, stock for stock a 6.7 injector will always outflow a 5.9.
To further the discussion it is most likely irrelevant for you to consider 6.7 injector because they run on a completely different ecm.