Will this cover my factory bumper sensor holes?

No — the cover is designed with cutouts that align to OEM sensor locations. Your front parking and collision sensors remain fully functional once installed.

Do I need to remove the lower valance to install this?

Depends on your truck's specific trim level and any accessories you're running. Test-fit first to confirm clearance with any aftermarket undertrays or skid plates before final fastening.

Can I paint this before bolting it on?

You can, but most builders prefer to install first, test-fit, then mask and paint on the truck. This ensures cutouts and bolt holes align perfectly before any finish work.