Will this interfere with my trunk seal or underbody panels?

No. This front lip mounts to the lower bumper fascia and does not contact trunk seals or undercarriage components. Verify clearance with your specific bumper configuration before final assembly.

Does the brake light cutout align with my factory bumper?

Factory mounting points are preserved, so the lip integrates cleanly with your OEM brake light assembly. Double-check the cutout position against your bumper before securing fasteners if you've modified any underbody components.

Should I use adhesive, bolts, or both to install this?

This lip is designed for bolt-on installation through factory mounting points. Adhesive alone is not recommended for front fascia parts exposed to airflow and vibration. Use fasteners rated for FRP panels and follow your vehicle's service manual for torque specifications.