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

No — the Eros profile extends below the factory bumper line without reaching the trunk area. Verify clearance by checking your bumper's lower edge geometry before final installation to account for any non-OEM modifications.

Should I use adhesive or drill through the mounting points?

Drilling into factory mounting holes provides the strongest long-term hold, especially at highway speeds where wind pressure builds on the lower fascia. If drilling isn't an option, high-quality automotive epoxy adhesive rated for FRP bonding works as a secondary method — sand both surfaces thoroughly and allow full cure time before driving.

How stable is this lip at highway speed?

Proper drilling and fastening ensure zero flex or movement. The single-piece design distributes lateral loads evenly across the bumper face. Verify all fasteners are tight before extended driving, and re-check after the first 200 miles.