Will this lip interfere with my trunk seal or undercarriage?

The two-piece design mounts to the existing bumper structure using factory attachment points, so there's no interference with the trunk seal. Verify clearance with your OEM bumper configuration before final installation.

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

This lip is engineered for factory mounting points on your existing bumper — no drilling or permanent fastening required. Use the mounting points that align with your bumper structure for a secure, reversible fit.

How stable is this at highway speeds?

FRP delivers solid panel rigidity with minimal flex during normal driving. At highway speeds, the two-piece construction stays secure when properly mounted to factory points. Ensure both pieces are fully seated and fastened before driving.