Will this interfere with my factory bumper or air dam?

The three-piece design is engineered around existing OEM mounting points. Before installation, verify clearance between the outer lip sections and any existing lower air dam or splitter on your vehicle. The modular design lets you test fit each piece independently.

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

Both methods work with this system. Adhesive-only installation preserves the bumper finish; mechanical fasteners through the mounting points provide permanent security. Review your bumper's construction to determine which approach suits your setup, and sand the mounting surface thoroughly before application.

How stable is this at highway speeds?

FRP construction is rigid and lightweight, with minimal deflection once properly secured. Confirm all three pieces are firmly seated and all fasteners are tight before high-speed driving. The modular sections share load distribution, so check each connection point before and after your first few drives.