Will this diffuser scrape on speed bumps or steep driveway transitions?

The Veran design adds minimal rear extension. Inspect your installation angle and ground clearance once mounted—adjust the mounting angle slightly if needed to suit your driving environment.

Is this purely cosmetic or does it provide functional downforce?

This is a styling diffuser. At street speeds, the aerodynamic effect is minimal. It delivers the aggressive stance you're after without requiring structural or suspension changes.

What surface prep is needed before painting?

Sand the surface with medium-grit sandpaper and clean thoroughly before applying your base coat and clear. Proper prep ensures paint adhesion and a factory-quality finish.