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

The AG design extends the rear profile downward, so clearance depends on your vehicle's suspension height and approach angle. Measure your current ride height and test clearance at your steepest incline before final installation. A mild air suspension drop of 0.5 inches or less typically maintains safe clearance on standard driveways.

Does this diffuser provide functional aerodynamic benefit or is it cosmetic?

AG Design diffusers are primarily styled elements that improve visual aggression at the rear. Real functional downforce requires integration with a full aero package—splitter, side skirts, and ducting—working together. This diffuser sharpens the aesthetic and channels air flow, but standalone rear diffusers without a complete system deliver minimal measurable downforce.

How do I maintain the carbon fiber finish long-term?

Apply a UV-protective clear coat during initial finish prep to preserve the weave texture and prevent fading. Once cured, wash with mild soap and microfiber cloth. Avoid abrasive compounds or pressure washers directly on the weave. Hand wax every 6 months to maintain depth and protect against oxidation from sun and road salt exposure.