Will this interfere with trunk lid operation?

The wing is designed for C4S fitment and mounts to the trunk area. Before installation, verify clearance between the spoiler's mounting points and your trunk latch mechanism. Check that the lid opens fully without contacting the wing's rear edge.

What mounting hole pattern does this use?

Verify your vehicle's OEM trunk mounting points match this spoiler's hole locations before drilling or fastening. If existing holes are present from factory hardware or prior work, confirm they align with the wing's mounting brackets.

How should I prep this before painting?

Sand the surface with appropriate grit to promote paint adhesion, then apply your chosen finish system. FRP accepts automotive primers and topcoats; refer to your paint supplier's prep guidelines for the specific products you're using.