Will this interfere with the trunk seal or underside components?

Front air dams sit well clear of trunk seals. Before installation, verify clearance at your vehicle's lowest suspension geometry and confirm fitment against your front bumper assembly — especially if you've modified suspension or added additional aero pieces.

Can I install this with adhesive, or do I need to drill through the bumper?

This piece is designed to mount using factory mounting locations — no drilling required. Adhesive alone is not recommended for front lips due to vibration and airflow loads at speed. Use the factory attachment points for secure, lasting fitment.

How stable is this at highway speeds?

FRP front lips are engineered for highway use when properly secured to factory mounting points. Ensure all fasteners are tight before driving, and inspect periodically — vibration can loosen bolts over time. A secure mount means stable aero performance across all speeds.