This is a truth. We tested my 3.0L (may she rest in peace) fuel pressure (when I was initially running the FMU) and came up with a number in the high 90's to 100. I don't know about you, but the thought of running 10# of boost, moving 100+MPH and having a fuel line burst and spray all over a hot motor/battery does not sound attractive to me. Can you say boom? FMU's are great if you are running an old Camaro or Mustang, but this is 2004, we have tuners and interchangable injectors. Save yourself the money and go with a Walbro 255LPH.