Will this diffuser scrape on steep inclines or driveways?

The Verella diffuser sits lower than stock bumper trim. Check clearance on your own driveway before permanent installation — approach angles vary by suspension setup and ride height. If you run lowered springs or coilovers, test the entry angle at a familiar ramp first.

Is this diffuser functional downforce or cosmetic?

The Verella design adds real aerodynamic effect by directing airflow and reducing rear lift at highway speeds. It's not a full-sized racing wing, but the diffuser vane profile generates measurable downforce — functional and visual in one piece.

What prep is needed before I install this?

Clean the mounting surface and OEM bumper thoroughly with soap and water. Sand the carbon surface lightly and the bumper mounting area to ensure adhesive or fastener grip. Refer to your vehicle's service manual for any hardware torque specs if bolting to existing anchor points.