For the front bumper there are two brackets right next to the wheel well. Along with some screws on the front between the lights. Also don't forget the screws that hold the fog lights.
For the back there are also two brackets on the sides, right behind the wheels. There are also a couple of bolts right next to and under the trunk latch, you'll need to remove the trim to get to them.
There maybe a few more screws and but I just named the main ones. Hope this helps.