The EFII boost pump comes with a kick plate. Like many others, I opted to use it as a doubler for the floor and since the holes are already in it to match the mounting holes, it was an easy sell.
After drilling the rivet holes, I deburred both the doubler and the bottom skin, countersunk the doubler for AN426 3-3.5 rivets and then primed. Once dry, I spray the doubler and later installed the doubler.
I have to get a few nutplates for the mounting of the boost pump.
