Will this interfere with my trunk seal or create gaps?

No. The lip mounts to your existing bumper attachment points without altering the trunk or hood line. Proper mounting ensures clean gaps all around. Verify your bumper is in good condition before installation — any damage to the OEM bumper will transfer to fitment quality.

Can I use adhesive instead of drilling, or do I need fasteners?

This lip is designed for bolt-on installation using factory mounting points. No drilling required. Use appropriate stainless or corrosion-resistant fasteners rated for automotive exterior use.

How does FRP handle stability at highway speeds?

FRP's rigid construction and one-piece design keep the lip stable under aerodynamic load. Ensure all fasteners are tight before driving, and check them periodically — vibration can loosen hardware over time.