Will this scrape on steep driveways or inclines?

Diffuser depth depends on your current bumper setup and suspension ride height. Before installation, measure the gap between your OEM bumper and the ground at various angles to confirm clearance matches your typical driving conditions.

Does this affect airflow or provide functional downforce?

The Verella diffuser is a cosmetic enhancement designed to amplify the visual presence of your rear end. It does not generate measurable aerodynamic downforce; prioritize fitment and finish quality over performance gains.

What surface prep do I need before painting?

Sand the surface with appropriate grit to establish tooth for adhesion, then clean thoroughly before applying your chosen topcoat. Refer to your paint manufacturer's prep guidelines for optimal results.