Will this diffuser scrape on steep driveways or inclines?

The MTS profile sits close to the factory bumper line, so clearance matches your OEM setup. If your vehicle already bottoms on steep approach angles, this diffuser will behave the same way. Check your typical driving angles before installation.

Is this functional downforce or mostly cosmetic?

MTS styling is primarily aesthetic—it mimics the look of motorsport diffusers. At street speeds, downforce from a rear diffuser is minimal. This piece adds visual aggression and the structural benefit of carbon fiber's lightweight nature.

What prep does carbon fiber need before installation?

Carbon fiber arrives ready to install. If you plan to apply a protective coating or adjust the finish, sand lightly and wipe clean before any work. The factory clear coat provides UV protection, but additional clear coat can enhance longevity in high-sun environments.