As far as the LEDs go, the inner set are for splicing (yes, splicing) into your fog lights since the factory ones aren't retained. The outter ones come with a harness for making them DRLs, but I'm not a fan of DRLs, so I also spliced the otter LEDs to the dogs lights. So now I have all of the LEDs in the bumper come one when I turn on the fog lights. They're nice and bright too.
The bumper installed rather smoothly. I did reinstall that plastic filler piece that was between the grille and the stock bumper. Without that filler piece, there was an unattractive gap between the bumper and the front frame area.
Other than that, that pretty much sums up the installation. I will say that I absolutely hated the silver hardware on the outside of the bumper and as you'll see in the pics, I did dip them because to me, the silver hardware looked too much like the spikes on a dog collar. Just my own personal opinion though.
Stand by for pics...