Will the OEM fog light and sensor holes align with this bumper?

Factory mounting points are preserved on this design. Before installation, verify that any existing sensor cutouts on your vehicle's OEM bumper correspond to the mounting location of this cover. You may need to reference your vehicle's service documentation or test-fit to confirm alignment if aftermarket sensors are installed.

Does this cover the entire rear bumper area, or just the lower fascia?

This is a full rear bumper cover that replaces the OEM fascia from corner to corner. It's designed as a direct visual replacement with STI-style shaping. Verify your vehicle's bumper dimensions against the product dimensions before ordering to ensure proper coverage.

What surface prep do I need before painting?

Sand the entire panel with progressively finer grits and clean thoroughly to remove dust and oils. Apply an appropriate primer for FRP before your final topcoat. Consult your paint supplier's recommendations based on the primer and paint system you've chosen.