Does this wing use the OEM mounting hole pattern?

Yes. The mounting points align with factory locations on the trunk lid. Before drilling or fastening, reference your vehicle's trunk deck to confirm hole alignment and measure any spacing that may differ from your previous setup.

Will the wing interfere with a trunk lid that opens?

The wing mounts to the rear deck. Verify trunk lid clearance on your specific vehicle before final fastening — some installations may require slight adjustments to lid geometry depending on your car's condition and any previous modifications.

What surface prep is needed before painting?

Sand the surface with appropriate grit and apply your chosen primer and paint system. FRP accepts standard automotive finishes — no special preparation beyond normal surface cleaning and sanding is required.