Will these covers work with my factory fog lights still installed?

Yes. These surrounds mount around your existing fog lights; you don't remove them. The bezel frames the light and sits flush against the bumper opening.

Do I need fasteners or adhesive to install these?

These mount at factory locations designed to hold trim pieces. Bring basic hand tools and test-fit before committing to fastener type—your specific bumper may have clips, tabs, or screw holes ready to go.

Can I paint these to match my bumper, or do they come pre-painted?

They come with a black finish on the bezel. If you want to blend the surrounding cover panels to your bumper color, standard automotive prep and paint methods work on the hard panel material.