This is for the Big "O" but will most likely be the same as the OS.
To start off, the wife was backing out of our drive, and watching the cam instead of how close she was to the raised sidewalk of our neighbors property, she ended up "molding" the lower bumper section right along the edge. Argh!!!! Wasn't even plated yet..... Oh well.
Pics will show where the clips and tabs are, but this is pretty much a cake walk. There's just 2 bolts, one on each side of the lower grill opening to take out. they are 10mm and only require a long socket or a short extension.
EVERYTHING ELSE to take off the bumper is a pop screw. You don't need to take off the wheels, but you have 1 pop screw that fits in a pocket near the seam where the bumper meets the fender.
Step one: place the vehicle on ramps and prop the hood. (this will help you see and "finagle" the pop screws out.
Step two: using a small flat head screwdriver, start pulling up the center of the pop screws of the intake, the front engine trim cover and the upper grill assembly. (there are three white plastic ones for the bottom of the upper grill that just need a pry with the screwdriver and they come out with the grill.
Step Three: Just follow the profile of the bumper and remove all the pop screws and then the two 10mm bolts from each side of the lower grill area.
The best way to remove the bumper now is to pull outward and a "little" up from each wheel well area. Watch as you pull near the body seam, you'll get probably 2 of the plastic tabs to pull or pop a bit, I had to use the small screwdriver to push the tab enough to release it.
Step Four: The fog lights come with the bumper, there is a small white push clip that holds the connector, you can use the screwdriver or pliers to help release it fro the core support, then you can grip it and it unplugs pretty easy. No special gizmoze to undo it.
Step Five: pull up the bumper in the middle and away from the front of the vehicle. Ta Da,,,, it's off.
NOW is a good time to replace the cheezy stock horns while its off.
OK, on to some pics. I'll try and see if I can get a vid, but I'm NOT video savy......