i started in the rear.
I wanted to use one piece of the scrap. It's a solid piece. no ribs. Had to allow for the exhaust that drops below the flat line. I used a a/c vent screen to compensate.
also in the center of the IMPUL bumper at the bottom there is a ressession. I left this open. some place for the air that gets trapped above the pan to escape.
having the rear mufflers lifted would cost $60.
templet
setting up mesh screen
rear vent
where are the elfs when you need them