A paper template is again used to show the shape needed for the bumper's center section.
Using a plasma cutter, Marc follows the template shape to make a forming die out of 3/4-inch steel plate.
This is what the roughed-out forming die looks like.
After smoothing the dies with a grinder and double-checking their shape against the template, Marc checks the fit between the top and bottom dies.
Source : http://www.customrodder.com