Do I need to drill new holes for sensors or parking assist?

Check your vehicle's OEM bumper sensor locations before final fitment. The bumper cover itself arrives solid; you'll reference your existing mounting points and sensor cutout positions to determine if additional drilling is needed for your specific setup.

What's the best way to prep this for paint?

Sand the primer surface with appropriate grit to promote paint adhesion, then wipe clean of dust. Apply your chosen primer and topcoat per the paint manufacturer's instructions. FRP accepts standard automotive finishes once properly prepped.

Will this clear my exhaust or any undercarriage components?

Verify clearance with your vehicle's current exhaust routing and rear diffuser (if equipped) before installation. The GP-1 profile sits lower than stock, so confirm your setup won't interfere with the bumper's lower edge and lip detail.