Will this interfere with the trunk seal or hood opening?

No. The front lip is designed to mount at the lower bumper level and does not extend into the hood or trunk envelope. Verify clearance at the widest points of your specific bumper before fastening.

Are there any brake light or sensor cutouts in this lip?

The Arcos design is contoured to avoid factory brake light and fog light locations. Before installation, confirm your vehicle's OEM bumper hole positions match this profile, as aftermarket bumpers may have different cutout spacing.

Should I use adhesive, fasteners, or both to secure this?

FRP lips perform best when fastened through factory mounting points using stainless steel hardware. Adhesive alone is not recommended for long-term durability under speed and vibration. Use factory holes as your primary anchor and verify torque specs in your vehicle's service manual.