Will this diffuser scrape on steep driveway approaches?

The diffuser extends below the rear bumper line. Before installation, verify ground clearance on your setup and check local terrain. If you regularly navigate steep inclines or unpaved surfaces, account for the additional rear extension when approaching angles.

Does this provide actual aerodynamic downforce or is it cosmetic?

F1-inspired designs combine both. The vaned profile is styled after functional downforce principles, though real-world aerodynamic benefit depends on vehicle speed and driving conditions. It functions as visual styling that references motorsport design language.

What fasteners do I need to bolt this on?

The diffuser uses the factory bumper mounting points. You'll need hardware to secure it at those locations—verify your existing bumper fastener size and type before assembly, or reference your vehicle's service manual for the correct bolt specifications and torque values.