You pick a horizontal surface on the nose under the hood and drill a hole. So after my Stable bars clear the grilles they bend up towards the sky. They are fully threaded so you just bend and cut to size. They come with all the hardware you need.
I take no credit for the idea for them, it was Blunt that showed me the way, he knows his way around huge lights.
Kris,
Thanks for the info, I'm not sure I have enough holes drilled in my car. Attached you should see a pic of a mod by the PO that has left me completely confused.