Will this lip interfere with my trunk seal or bumper edges?

No — the lip is designed to sit flush with your factory bumper's lower edge and does not extend into adjacent body panel areas. Before installation, verify that your bumper is properly aligned on the vehicle frame, as any outward shift will affect how the lip sits.

Can I install this with bolts, or does it require adhesive?

This lip mounts via factory bolt holes on your bumper, meaning a fastener-based installation. You do not need adhesive, and no drilling is required. Use a torque wrench and refer to your vehicle's service manual for proper fastener specifications.

Will the lip stay stable at highway speeds, or will wind lift it?

FRP lips are rigid and bolted to the bumper structure, so they will not flex or separate during normal driving. The factor that matters is installation tightness — ensure all fasteners are snug before your first drive, and check them after 100 miles of use.