Will this interfere with my trunk seal or undercarriage?

No. This front lip sits below the bumper and does not extend into the undercarriage. Verify your bumper's lower edge has clearance before installation — most stock setups have no conflict.

Can I install this with adhesive only, or do I need to drill?

This piece is designed for bolt-on mounting to existing factory holes — no drilling required. Use the OEM attachment points on your front bumper for a secure, repeatable fit.

Is the finish stable at highway speeds?

FRP is durable and won't flex or rattle once bolted down. Sand the primer surface lightly before applying your finish coat to ensure paint adhesion and long-term durability.