Will this rear diffuser scrape on steep driveway angles or speed bumps?

The rear diffuser extends below the factory bumper line, so approach angles matter on steep inclines. Verify clearance on your specific driveway pitch before final installation. If you frequently encounter steep approach angles, you may need to adjust your entry technique at driveways and parking lot ramps.

Is this diffuser functional or cosmetic?

This is a styling piece inspired by LBW race car design. While the shape echoes race-proven diffuser geometry, functional aero performance depends on vehicle speed, suspension setup, and overall body tuning. Treat it as a visual upgrade that captures aggressive track aesthetics.

What prep and finish should I use before installing this?

Sand the FRP surface with appropriate grit and prep the surface before applying your chosen topcoat. FRP accepts standard automotive primers and paints. Verify compatibility with your paint supplier before application to ensure proper adhesion and durability.