Will this bumper cover require modifications to fit my lower valance?

The I-Spec 2 design uses factory attachment points, so it integrates with OEM lower valance fitment. Verify your current valance mounting before installation to ensure clean alignment with the new bumper profile.

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

This bumper ships as a blank cover. If your vehicle has factory fog light cutouts or sensor holes in the OEM bumper, you'll need to cut matching openings in this cover using the original holes as a reference before paint and install.

What should I do to prepare this bumper before painting?

Sand and prep the surface with standard body shop procedures before applying your chosen base coat and clear. FRP responds well to standard automotive paint systems — follow your paint supplier's guidelines for prep and application on plastic substrates.