Does this bumper have sensor or fog light cutouts?

This is a bumper cover only—no pre-cut holes for sensors or fog lights. You'll need to drill or route cutouts to match your existing wiring and lighting setup.

Will this fit with an existing rear diffuser or splitter?

The Type M profile has a different lower lip design than stock. Test fit is strongly recommended if you're running aftermarket rear aero; clearance depends on your specific setup.

What do I need to do before painting?

FRP ships in raw FRP state. Light sanding of the primer base and any surface imperfections is standard prep before paint. No additional surfacing is required if you're happy with the finish.