Will this lip interfere with my trunk seal when the lid closes?

No. This is a front-mounted air dam positioned below the front bumper fascia. It does not extend rearward and will not contact the trunk or rear seals during normal operation.

Does this require drilling, or can I use adhesive alone?

Verify your vehicle's existing bumper attachment points before installation. Many front lips use the factory mounting structure, but adhesive backing and fastener options vary by setup. Check your OEM bumper configuration to confirm the best mounting method for your car.

Will this lip stay stable at highway speeds?

FRP panels are designed for street and track use and resist warping under airflow. Proper installation using factory mounting points or reinforced adhesive and fasteners ensures stability at speed. Confirm secure mounting before first drive to eliminate any vibration.