Will this interfere with my trunk seal or rear bumper fitment?

This is a front lip designed to mount to the lower bumper fascia, so trunk and rear fitment are not affected. Installation focuses on the front fascia area only.

Should I use adhesive or drill through the bumper to mount this?

This lip uses the existing OEM bumper mounting points, so you're working with factory holes. No drilling or permanent adhesive needed — standard fasteners handle the install. Verify your vehicle's OEM hole locations before final mounting.

Will carbon fiber stay stable at highway speeds?

Yes. Carbon fiber is rigid and significantly lighter than the plastic it replaces, so it maintains its shape under aerodynamic load. Make sure mounting points are clean and fasteners are secure for consistent performance at speed.