going out on a limb....

this is the backside of the bumper where it mounts to the absorber(one side). this entire inside structure piece is made of 3/16 inch thick steel and is almost the size of the bumper itself. we have cut just this section out on both sides, so that it will still bolt to bumper and leaving this part to bolt to the body.i bet it would shed close to 50+ lbs off of the front.the rear bumper is designed the same way and you could to the same to it. if you were to hit anything,the bumper would give much easier.