Will this trim cover factory sensor or parking assist holes in the bumper?

This trim installs over the existing side grille opening — it won't seal or cover sensor cutouts. If your bumper has integrated sensors below the grille area, those remain exposed and functional.

Can I paint this before installation?

Paint before or after install works either way. If painting first, let it cure fully and mask off the mounting tabs to avoid paint buildup in bolt holes. Installation won't disturb a fully cured finish.

Does this come with bolts or fasteners?

Fasteners aren't included. You'll use your vehicle's factory mounting hardware at the existing bolt points — check your original trim piece or service manual for the correct bolt type and torque specs.