Do I need to drill holes for my fog lights?

No—the cutouts are already machined. Your fog light bezels and housings mount directly into the pre-cut openings.

Will this fit if I have a bumper sensor?

Factory sensor bosses are preserved in the design. If your truck has them, they align with the cover—no blockage or modification needed.

What prep work is required before paint?

Light sanding and a quality primer will prepare the surface for basecoat and clear. Exact grit and primer brand depend on your shop's process and desired finish.