The kit uses standard (and common) OEM parts and adapts them to work together for use on Jeeps. Obviously, the nice Centrix rotors and Black Magic pads the kit comes with are an upgrade over stock components, but if you're stranded in BFE, there will be an easy fix to get you back on the road.
I'm so confused how you have way nicer hardware on your $500 race XJ than I do on my $2000 race XJ! FYI we are running my old Autozone Duralast rotors and Gold pads front with stock Ford rotors and POS $9 "Kool Vue" pads in the rear. lol
Brakes are gorgeous, I might think of these for my offroad XJ.