Will this interfere with my trunk seal or latch?

The under-spoiler design sits below the trunk area and does not contact the seal. Verify clearance with your bumper and undertray layout before final assembly, particularly if you've modified the rear fascia.

Should I use adhesive or drill through the factory mounting holes?

Factory mounting points are designed for bolts — use them. Adhesive alone is not sufficient for a front lip that flexes during cornering and braking. Secure fasteners through the existing holes for stable, long-term hold.

How do I prepare FRP for paint?

Sand the surface with appropriate grit to scuff the finish, then wipe clean. Apply your chosen primer and paint system according to the product manufacturer's instructions. FRP absorbs moisture, so proper surface prep and clear coat finish are essential for durability.