What mounting hole pattern does this use?

Before installation, measure your factory trunk lid or spoiler mounting points. Compare those hole locations to this wing's attachment points to confirm alignment. If your existing holes don't match, you may need to drill new holes or use backing plates to adapt the mounting.

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

Check the vertical clearance between your closed trunk lid and the upper edge of this wing. Open and close the lid several times to confirm the panel doesn't contact the lid or its hinges during the full swing arc. Make any height or angle adjustments before final tightening.

How should I prep this for painting?

Sand the entire surface with appropriate grit to scuff the primer finish and remove any gloss. Wipe down with a clean cloth to remove all dust and debris. Apply your chosen primer, base coat, and clear coat according to your paint system's specifications.