FPR is located on the drivers side fuel rail, at the end closest to the windshield.
I can't remember what the stock configuration is with the plastic cover removed, so don't know how accessible it is.(what else might be in the way)
It shouldn't take much more than an hour, IIRC, just remove the snap ring/ FPR & replace w/ the new one.
Make sure to note order/ orientation of old parts as they come out.