Will this diffuser scrape on steep driveways or inclines?

Carbon fiber diffusers extend rearward and sit lower than OEM bumpers. Approach angles matter — check ground clearance at your typical entry points (driveway aprons, parking lot slopes) before installation. If you frequent steep approaches, confirm fitment against your vehicle's current ride height.

Is this purely cosmetic or does it provide actual downforce?

This is a styling piece designed to match the AF-1 aesthetic. Any aerodynamic benefit depends on vehicle speed, rear wing presence, and overall setup — not the diffuser alone. Install it for the look and weight savings; don't expect measurable track performance from the diffuser itself.

What prep work is needed before installation?

Sand and prep the mounting surface on your OEM bumper before applying adhesive or fastening. Ensure the area is clean, dry, and free of debris. Refer to your vehicle's service manual for any OEM fastener torque specs if bolting directly to existing holes.