Will this wing interfere with the trunk lid when it opens?

No. This wing is mounted at the trailing edge of the trunk lid, clear of the hinge line. Verify clearance by checking your OEM trunk opening height before installation.

What's the mounting hole pattern, and do I need to drill new holes?

This wing uses the factory trunk lid mounting points. No new drilling is required—it bolts directly to existing holes. Before final fastening, reference your vehicle's service manual for correct torque values.

How stable is an FRP wing at highway speeds?

FRP is rigid enough for highway driving when properly secured. Ensure all fasteners are tightened to spec and check them periodically. Avoid extreme downforce loads not intended by the design.