Does this bumper have pre-cut fog light openings?

No — this cover arrives as a solid fascia. If your setup requires fog holes, you'll mark and cut them to match your vehicle's lighting locations and existing bumper cutouts before installation.

Will this cover work with my factory bumper sensors?

Sensor compatibility depends on where your OEM sensors are mounted. Before installation, check if your sensors sit behind the bumper cover area or on the frame. If they're in the cover's path, you'll need to either relocate them or drill bypass holes and route wiring accordingly. Reference your vehicle's service manual for sensor locations.

Do I need to modify the lower valance or air dam to fit this?

This cover is designed as a direct replacement for the front bumper fascia. Whether the lower air dam or chin splitter requires trimming depends on the fitment gaps once mounted. Test-fit before final installation to identify any clearance issues at the lower edges, then trim as needed to blend with your existing bumper structure.