Will the diffuser scrape on driveways or steep inclines?

The diffuser extends slightly below the rear bumper line. Check ground clearance at your vehicle's lowest approach angle — driveways, parking lot lips, and speed bumps are the real-world test. If you regularly bottom out or drive aggressive angles, verify fitment over curbs before committing to final installation.

Is this functional downforce or cosmetic?

This is an M Power design — it adopts the visual language of performance styling. Real downforce depends on vehicle speed, body gaps, and air flow underneath. Install it for the aesthetic; any aerodynamic effect is a bonus at street speeds.

What fasteners do I need to install this?

The diffuser mounts to existing rear bumper structure and holes. You'll need to identify your bumper's mounting points and source appropriate hardware (bolts, clips, or adhesive) based on your attachment method. Consult your OEM service manual or test-fit the diffuser to your bumper assembly first to confirm what's required.