Do I need to drill new holes for sensor or fog light cutouts?

This bumper is designed for bolt-on fitment at factory mounting locations. If your vehicle has integrated fog lights or parking sensors in the OEM bumper, reference your original bumper's hole pattern before finalizing fitment. You may need to transfer or replicate existing cutout locations depending on your sensor setup.

Will this fit if I'm running a lower valance or splitter?

The B-2 profile sits lower than some OEM designs. Measure the clearance between your lower valance or splitter and the bumper's bottom edge before installation. If you're adding aftermarket aero, test fit components to ensure no binding or contact points exist during full suspension travel.

Should I paint this before or after installation?

You can paint before or after fitment, depending on your setup. If painting before, install it carefully to avoid chips. If painting after, mask off mounting areas and fastener holes. Sand and prep the surface with your preferred grit before applying your chosen paint system for best adhesion and finish quality.