Will this diffuser cause clearance issues on driveway ramps or steep inclines?

The VT profile maintains stock ride-height geometry, so it won't drag under normal driving. Test your approach angle and departure angle before committing to long-term use; steep driveways or very aggressive launch angles may require attention depending on your suspension setup.

Is this functional downforce or visual styling?

VT diffusers are designed with real air-management profiles that generate measurable rear-end downforce at high speed. You get both the appearance and aerodynamic benefit — it's not pure cosmetics.

Does carbon fiber need special care or coating?

Real carbon fiber benefits from a UV-protective clear coat to preserve the weave and color over time. Sand and prep the mounting surfaces before installation, and consider a quality clear coat application if you want long-term finish durability under sun exposure.