I love your very detailed pictures and writeups! I used a combination Dynamat + Fatmat + Mass-loaded Vinyl in my '14 Mustang, but I couldn't justify spending that much amount of money for my Rattle Trap, and by Rattle Trap, I meant my 4Runner, not the product!

I used the infamous Peel 'N Seal with aluminum HVAC tape for my 4Runner. Front doors and rear cargo floor, I haven't done the main cab floors and rear passenger doors yet. Might add some Frost King Insulation as well around the transmission tunnel - we'll see! I just needed some small reduction in road noise while not steering away too far from my budget which is currently being prioritized for maintenance.