Dan, I made those lower grills myself. I bought some chrome mesh grill from Autozone for $34.00, cut it to the shape of the plastic ones and bend the edges to secure it and then snap it back in place...it's tight so it should secure itself. It's easy to remove the plastic ones, start at the middle when prying it out with a screwdriver...just be real extra careful though. I only used half of the mesh grill so you can share it with your other XF.