Thanks. Temperature went right back to normal once removed. It didn't overheat was just much warmer then normal.The holes in the bumper line up with the plate. Any L shaped brackets will do. One of mine has had the place held on that way for years.
You might have radiator problems if the plate on the grille is causing overheating problems but that's probably not the best place for it when it can mess up the grille over time.