Will this diffuser scrape on steep driveways or ramps?

The three-piece design sits at the lower rear bumper line. Verify ground clearance at steep approach angles by checking your vehicle's current bumper height and the diffuser's extension depth. If you frequently navigate steep inclines, measure your approach angle against the diffuser profile before final installation.

Is this functional downforce or purely cosmetic?

The Avast diffuser delivers visual aggression and subtle aerodynamic character. For measurable downforce performance, this piece contributes to overall rear-end flow; exact numbers depend on your full aero setup and speed. It's best suited for visual enhancement and complementing an existing aero package rather than standalone downforce duty.

What surface prep do I need before painting?

Sand and prep the surface before applying your chosen finish. The FRP will accept standard automotive paint systems. Consult your paint supplier's recommendations for primer type and application method based on your chosen topcoat.