Will this interfere with my trunk seal or bumper fitment?

No. This lip extends downward from the bumper's lower edge and does not affect the trunk seal or bumper-to-fender gaps. Before final install, dry-fit the lip and verify clearance with your factory bumper attachment points to confirm alignment on your specific vehicle.

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

This lip is designed for bolt-on installation using your vehicle's existing factory bumper fastener locations. Drilling is not required. Use stainless steel fasteners to prevent corrosion and ensure the lip stays secure at speed.

How do I prep the FRP before painting?

Sand the surface with appropriate grit to promote paint adhesion, then wipe clean of dust. Apply your chosen primer and topcoat per paint manufacturer specs. FRP takes standard automotive paint finishes without issue.