Will this interfere with the trunk lid or bumper seal?

The Goblin profile sits at the lower front fascia and does not extend into the trunk area. Verify clearance with your current bumper assembly before final installation, especially if you're running a lowered suspension or aftermarket front bumper cover.

Should I use adhesive or drill through for mounting?

This lip is engineered around factory mounting points, which typically accommodate both methods. Adhesive offers a cleaner install with no new holes; drilling provides permanent lock-down. Choose based on your comfort level and whether you plan to remove the lip later.

How stable is FRP at highway speed?

FRP is rigid enough for highway duty when properly mounted to factory attachment points. Ensure all connection points are tight before extended driving, and periodically check for any movement or rattle after installation.