Will this bar interfere with factory fog light cutouts?

This reinforcement bar is designed around factory bumper geometry and doesn't obstruct fog light openings. Your existing lights remain fully functional after installation.

Does it work with factory parking sensors, or will I need to drill new holes?

The bar mounts at existing factory points—no additional drilling required. If your bumper has sensor cutouts, they stay clear and operational.

Can I prime and paint this before installing, or should I wait until it's mounted?

Paint it before mounting if you prefer—hard panel construction handles prep and finish work well. Just mask off mounting surfaces to ensure fasteners seat properly.