Did you check out my white one Mike?
I had the cut out like that for a year now.
What I did was I removed the headlight and used a butter knife and got it cherry red and burned right threw the headlight cutting a rectangle.
Then after that I used a small grinder and even it out."Ghetto" but it worked.
I only did that and the air duct thing to keep my underhood temps lower.But my air duct is a metal intake welded on to the frame.
It has helped a bit but not really worth it.