When I did the front bumper tuck, I removed the fog lights and filled the mounting and electrical wiring holes with rubber grommets. I knew that was only a temporary fix so this week I got busy with a permanent solution.
I removed the front bumper and the front valance, then removed the chin spoiler from the valance then hammer and dollied the valance to flatten out the area around the center mounting hole. After sanding back to bare metal front and back around the fog light mounting holes, I hand formed two 3 1/2 x 4 inch pieces of .020 inch sheet metal to lay flat against the backside of the valance - one for the each fog light. Then I applied an even coat of JB Weld to each patch piece and placed them on the backside of the valance and held them in place with wood blocks and metal spring clamps.
After a 24 hour cure, I removed the wood blocks and spring clamps and sanded off excess JB Weld from both sides of the valance. Then I masked off the outside lip and applied two light coats of under coating to the backside of the valance and removed the masking tape.
Turning back to the front of the valance, I applied a thin coat of Bondo to each fog light area and waited for the Bondo to harden, then I sanded off the excess Bondo. After cleaning the front side of the valance with degreaser, I applied two coats of primer, then let the valance cure overnight.
The next morning I took the valance to the local body shop to get a sealer coat, base coat in GP White (code 908) and clear coat on both sides.
Two days later, I picked up the painted valance, reassembled the chin spoiler and then installed the valance and the front bumper. The front bumper project is now completed.
Hammer and dolly work
Epoxied patch pieces
Under coated backside
Bondo applied to frontside
Before photo
After photo