fuel pump?
 

I am working with a 05 ctd, putting a edge juice a2 on (buddies) I checked with edge and the performance shop we got it from.......was told the new engine setup in the 05 doesnt even need a fuel pump and it is only there to prime the line. Im cool with this if its correct. It just seem to me that i hear to many people talk about fass and other fuel systems to think that there not needed on th enew trucks. Help me out please. explain the fuel system in the 05