Will the multi-piece design stay stable at highway speeds?

Yes. The three-piece construction actually improves stability by distributing load across multiple mounting points rather than concentrating stress on a single panel. Ensure each section is secured according to the mounting pattern on your vehicle's trunk lid.

How do I verify the mounting hole pattern will work with my trunk lid?

Before installation, place the wing assembly against your closed trunk and mark the hole locations. Compare these points to the existing factory holes or pre-drill locations on your trunk lid to confirm clearance and alignment. If you're drilling new holes, verify they do not interfere with trunk latch or hinge mechanisms underneath.

What surface prep do I need before painting?

Sand the surface with appropriate grit progression and clean thoroughly to remove dust. The FRP is ready to accept primer and paint systems once prepped. Follow your paint supplier's recommendations for primer type and application technique specific to fiberglass.