Will this carbon fiber bumper need to be painted?

Carbon fiber can be left in its natural weave finish or painted to match your vehicle. Clear coat is recommended to protect the carbon from UV exposure and maintain the finish long-term. Decide on finish before installation so you can prep the mounting surfaces accordingly.

Does the N4 bumper cover require drilling into the lower valance or existing bumper holes?

This bumper is designed as a direct cover replacement. Review your vehicle's OEM bumper mounting locations and sensor hole positions before installation to confirm compatibility with your setup. Drill or modify the carbon panel only if necessary to align with your factory mounting points.

How should I prepare the carbon fiber surface before installation?

Sand the mounting face lightly to remove any surface finish and improve adhesion if using sealant or tape. Clean thoroughly with a lint-free cloth to remove dust and debris. Avoid high-pressure water or harsh solvents that could seep into the weave; gentle cleaning preserves the material's integrity.