Hello, you might find a copy of the instructions on Jim Betts circlekf.com site but because the fog lights are clamped on to the inside front bumper brackets if you removed the splash pan and installed the fog lights on the brackets you could pretty well see where you would have to drill the holes for the lights to go through the splash pan. I don't know the size of the hole to be drilled but they originally had a rubber o ring so they would not rattle or let mud through them. Another solution is to try to find a car owner who has already installed them and get his measurements.
