Will this wing interfere with my trunk or hatch operation?

Verify your specific trunk opening dimensions and clearance before drilling. The wing mounts at the upper trailing edge; measure the gap between your closed trunk and the spoiler's base to confirm adequate room. Coupe platforms typically have sufficient clearance, but your vehicle's exact configuration should be confirmed before final fastener placement.

What mounting hole pattern should I use?

Reference your OEM trunk lid or the existing factory spoiler location for hole placement. If you're upgrading from a factory wing, those mounting points will align. For a clean install, mark the holes, test-fit the panel first, then drill and secure with fasteners appropriate for your FRP panel weight. Refer to your vehicle's service manual for fastener torque specifications.

How stable is this wing at highway speeds?

FRP construction is rigid and won't flex under normal driving. Proper fastener torque and placement at multiple points ensure stability at speed. Once mounted securely, the wing will perform reliably; confirm all fasteners are tight before your first drive, then inspect periodically to maintain security.