Those look great! I need to do this to mine, how did you take the bumper off? I'm assuming by what I've seen that there is a screw for the lamp hidden behind the bumper?
There is a mount for the lamp behind the bumper, you can see the tab sticking out on mine before I fit them in
this post.
Removing the bumper isn't too difficult, just a load of screws around the arches, underneath and a couple under the grille. Just make sure you get the sides aligned in the mounting brackets when refitting.
