Will this interfere with my trunk lid when it's open?

The wing mounts to the lid itself, so clearance depends on your trunk opening depth and the surrounding bodywork. Measure the height of the wing profile and verify it doesn't contact your body panel or hatch hardware when the lid is fully raised. Most installations sit clear, but check your specific setup before fastening.

Does this use the factory mounting holes?

Yes — this wing is designed to use the existing mounting points on your trunk lid. You'll need to drill or use the holes already present; verify their pattern matches this wing's baseplate before committing to installation.

What do I need to do before painting?

Sand the primer surface lightly to scuff and improve paint adhesion, then clean off all dust. The exact grit and prep method depend on your chosen paint system — consult your primer and topcoat manufacturer's data sheets for their recommendations. Once prepped, it's ready for your base and clear coat.