Ok, here's some pics of the retrofitting of the recessed foglight grills onto my GXP's fascia. Good news is that they will work but the fit is rather tight. Quite tight that I didn't want to push the entire grill in all the way as I fear I may snap the brittle tabs trying to remove it. Bad news is that these are not just easy plug and play mods. You'll have to cut part of the fascia within the grill opening in order to clear the tunnel of this grill. And it will take time to take off little by little either with a dremel and/or file to make sure nothing interferes with the back tunnel outside surface.
I completely removed the fascia, first step.

Here's a pic with the oem fog light grill removed.

The differences between the two.

With the black cover removed.

I roughly sketched out where I will be cutting with a dremel cutter.

Me cutting with a dremel cutter.

Once I cut out the basic hole, I test fitted the grill only to find out that there was more to cut in certain areas which prevented the grill from sitting all the way flush.

After several cutting and filing of small areas while fitting the grill, I finally got the grill to sit flush. However, I didn't want to push the last two tabs in all the way as I was afraid that I may snap them removing the grill from the fascia as the material for this SLA piece is fragile.


Here, you can see the flat edge of the grill is not completely flushed to the fascia as I kept the tabs from snapping in place. Also notice that the metal crash bar is highly visible through the tunnel but does not interfere with it. I'm considering adding an actual recessed honeycomb patterned grill, similar to the main grills, in the back of the tunnel to camouflage the crash bar a bit.


