The mud guards are INSTALLED! It was harder than I expected, maybe coz of 17" and wider rims. Also didn't have the right tools (right-angle screwdriver), so I used a small adjustable wrench and IKEAs screwdriver "head". Anyway, here are some pics:
1. Without mud guards, you can see the dirt below the bumper.

2. Left mud guard, rear view.

3. Left mud guard, inner view.

4. Two screws on the left into the bumper, 1 nut on the inside secures the mud guard to the car body.
