Do I need to drill new holes for sensors or fog lights?

Reference your vehicle's OEM bumper hole locations before any drilling. This cover uses factory mounting points, but sensor and fog light openings depend on your specific setup. Compare your existing bumper cutouts to this cover's surface to determine if additional work is needed.

Will this fit with my lower valance or air dam?

This is a direct replacement bumper cover designed around factory geometry. If your lower valance or air dam currently fits, alignment should match. If you've modified the lower fascia, physically verify clearance before finalizing installation.

What prep is required before painting?

Sand the surface with appropriate grit to promote paint adhesion, then clean thoroughly. Follow your paint manufacturer's prep and application guidelines for topcoat adhesion and finish quality. Primer type and paint selection depend on your chosen finish system.