Will this wing maintain stability at highway speed?

Yes. The competition profile and single-piece construction provide consistent downforce across a range of speeds. Ensure your mounting bolts are torqued to your vehicle's service manual specifications and verify that all fasteners are tight before highway driving.

What's the mounting hole pattern, and will it match my car's trunk lid?

The wing is engineered to use factory attachment points on your vehicle. Before installation, verify hole alignment with your specific trunk lid and measure clearance between the wing base and the deck surface to confirm proper fitment without interference.

Do I need to do any surface prep before painting?

Sand and prep the surface with standard automotive abrasive before applying your chosen finish. This ensures proper paint adhesion and a clean final result. Follow your paint manufacturer's recommendations for primer and topcoat application.