I started installing my sheet metal today. Tedious is the best description. It was suggested to me that the flanges should be underneath for a cleaner look. I really like that idea but I am thinking about just covering the whole panel with Thermo-tec facing the engine bay as well as inside the car under the carpet. I am in Mississippi and the heat is no joke ya'll. 97º with 95% humidity on a normal summer day. I think with the foil on BOTH sides of the footboxes it will really help with the heat. I am also going to install the air vents from ********** to help as well. I am pretty hot natured and I want to enjoy the driving as much as possible. If I put the heat foil on the areas with the arrows will that just look awful? Remember this is going to be a driver for me. I might take it to Cars and Coffee but that would be the extent of showing it.