What Sergio said^
Bumper HAS to come off, there is two bolts you will need to get too that you can't with the bumper cover on. The headlight comes out pretty easy after that.
You will need two people to remove the bumper. Not shown in the video but important Be sure to put blue tape on your fenders to prevent scratching, and Spray soapy water on all the bumper seams as some are friction fit.
ALSO DO NOT START CAR WITH THE BUMPER DISCONNECTED, you will trigger a CEL