Will this diffuser scrape on driveway approaches or speed bumps?

Rear diffusers sit close to the bumper line and extend lower than the factory fascia. Check your typical approach angles before installation — measure ground clearance where your driveway meets the street. If you frequently encounter steep inclines, a professional installer can confirm final ride height during fitment.

Is this functional downforce or purely cosmetic?

This diffuser is engineered as functional M Performance aero. It works with the factory exhaust exit and rear bumper to manage airflow under the vehicle, creating measurable downforce at highway speeds. Results depend on your suspension setup and overall aero package.

How do I protect the carbon fiber finish after installation?

The clear coat provides UV and weather resistance, but treat it like you would any exposed carbon — avoid abrasive cleaners and high-pressure spray directly on the weave. A ceramic coat or wax barrier applied over the clear coat adds an extra layer of protection against road salt and debris.