Do the fog lamp cutouts line up with my factory bezels?

Yes. The openings are pre-molded to match OEM fog lamp positions. If your truck has factory fog lamps, they'll sit flush. If not, you'll need to source matching bezels separately.

Will this fit if my truck has a lower valance or air dam?

Test-fit is recommended before full installation. Lower air dams can sometimes interfere with bumper depth. Check clearance at the lower corners and grille surround before committing fasteners.

What fasteners do I need to mount it?

Hardware not included with this assembly. You'll use your factory bolt holes—check your service manual or test-fit to confirm bolt size and quantity at each mounting point on your frame.