I'll tell you the asswipe that assembled mine at the factory should be fired. I notices the bulges and a wide gap along the bumper rear quarter line when I picked up the car. After seeing this thread I pulled both side off and had both tabs on each side in the wrong position. My drivers side even had the plastic support broken off and 2 holes in the bumper cover.
See the tab behind the metal clip????? It supposed to be in front of it!