Do these covers use the factory fog hole openings, or do I need to drill new locations?

These are designed to align with factory fog light openings. Before installation, measure your OEM bumper's fog hole positions and verify they match the cover mounting tabs. If holes don't line up, you may need to drill or enlarge existing openings.

What prep work is needed before painting?

Sand the surface with medium-grit sandpaper to promote adhesive adhesion and paint bond. Wipe clean of dust, then apply your chosen primer and topcoat. FRP accepts most automotive primers and paints—verify compatibility with your paint supplier before application.

Will fasteners or mounting hardware be included separately?

The covers ship as bare components. Fastening will depend on your bumper's existing fog hole configuration—some use factory clips, others require self-tapping screws or panel adhesive. Check your OEM bumper for available mounting points and hardware options.