To update this to 2017, the dealers drill holes to mount their license plate frame along with the dealer blurb on the front bumpers in California at least. All fine and dandy until you unscrew it as you must to put your front required in California license on. Well, the smallish sheet metal screws the dealers use leave you with virtually unuseable holes for putting the same screws in. It would be nice of them to include the $29 Subaru black plated steel license plate mounting frame that they make a few extra dollars off of you on.
I bought the Subaru license mounting plate from my dealer and love it. It comes with mounting hardware, including two much larger self-tapping screws which go into the smaller holes left by the dealer. They HOLD very good, but do not overtighten them or you may end up in the same loose mount bed. However, just tightened to the point of the plate being flat against the bumper the plate feels very firm, not flimsy. They have four screws that hold the plate itself to the plate, and those go into clips. They can be screwed and unscrewed and screwed again as they are metal in metal spring clips. I also used the chromed stainless steel license plate frame we had purchased, which did not have bottom screw holes. The two top screws hold the license plate and frame very well, no looseness at all. The frame that we have covers the metal plate feeling like a perfect fit.