We don't have an install guide. But, it is not difficult to remove. I've done it a couple of times. You need to remove the back portion of the trunk plastics. All the bolts should be exposed. There are two on each side, and 5 or 6 on the center holding the bumper. These are 10mm.
You would need to get under the car, there are 2 black clips that you need to remove. These are a bitch to remove.