Hey there Dan!......how things been?
I did the bottom of mine and think it was a good move.....really quiets down noise from engine, gives a real nice "thud" when you close it, and it also minimizes hood shake (driving down the road and you see the top sheet metal of your hood wiggling around).
I used a single side foil back insulation and attached it using a 3M hood insulation spray glue......sticking real well after 3 years. Also used something called stack tape around the perimeter....it's a foil back very sticky tape used in the HVAC industry.
I did it in 2 pieces with the seam under one of the braces....took some larger sheets of paper and cut a couple templates. Just slid the cut pieces of insulation under the braces which was nice and snug. I also ran an aluminum strap along the hood ridge just to insure the insulation stayed up.
After I got it all up, I didn't like how reflective it was and took a scotchbrite pad and scuffed it all down real well to dull it up......looked better that way to me. I think it ended up looking pretty good and was pretty inexpensive.
