Will this interfere with my trunk seal or lower bumper clearance?

The Specta profile is designed with minimal extension to avoid interference with stock bumper geometry. Before installation, measure the clearance between your front bumper assembly and any under-body components. If your bumper has been modified or sits lower than factory spec, verify clearance with a template mockup before committing to fasteners.

Can I install this with adhesive, or do I need to drill through the bumper?

This lip is designed for factory mounting point integration — check your bumper assembly for existing holes or clips that align with the mounting flanges on the underside of the lip. Adhesive alone is not recommended as the primary fastening method for front air dams due to vibration and impact loads. Use fasteners where factory points exist, or have a technician evaluate your specific bumper for drilling and reinforcement if necessary.

How stable is FRP at highway speeds, and will it crack or flex excessively?

FRP is engineered for rigidity and handles highway vibration well when properly mounted. The material will flex slightly under extreme force but returns to shape under normal driving conditions. Ensure all mounting points are secured to prevent resonance vibration, and inspect fasteners periodically — looseness causes movement that accelerates fatigue more than the material itself.