Ed I have the same truck. I got resistance from the installers on doing the front bumper. One said it wouldn't stick other said to difficult. That bumper face is easy to get hit with small road rash leaving white spots if you have a black truck.
So after being caught on I80 in Wyoming in high winds, 50+mph, passing a pile of WYDOT gravel for some type of project which in turn sandblasted the truck but spared the Classic, the parts that were protected faired pretty well. But at the end of the day the insurance company check is $6K and climbing. New bumper, grill, front fenders, AC condenser, oil cooler, windshield and the list might still grow.
So this time I will insist on the 3M bra on the flat portions of the bumper. We get lots of road sand in the winter which the bra will protect. No issue washing in a car wash.
2015 GMC Sierra 2500HD Duramax