FPR= Fuel Pressure Regulator. The "Panther Platform" is the platform that the car was built on, along with the Crown Vic and Grand Marquis. I rented a fuel pressure gauge from OReilly's last time I needed one. Don't remember the cost off hand though, but it was a mechanical gauge. Worst case find a Harbor Freight near you and just buy it. It's one of those tools that you will probably only use once in a blue moon but will save your a$$ when it's needed, especially on the newer cars.