The only thing I might add to that bumper is maybe a small grille opening if it needs it to keep the fan from cycling a lot. I will have to drive it for a while and see how it goes. The aluminum brace ends well before the corner. I didn't bother trying to make a frame in the corners that way if it hits something it might flex instead of crack hopefully. I got the 25ft roll so I have enough to use for my kit car Metro project sometime in the future when I get back to building on it. I did get a roll of white and am thinking since it is so easy to work with I might as well make a kammback.
I am hoping this helps the 181/181 cam I have in the car at highway speeds and can get me reliably over 60mpg on my normal commute. This car already has weight reduction and a slightly more aero back bumper. It is another leftover from the old Metro project
At least it lets the air pass through better than a solid bumper.
