Will this diffuser scrape on steep driveways or inclines?

The AF-1 profile sits close to the rear bumper line. Check clearance on your driveway's steepest approach angle before installing. If ground clearance is marginal, test-fit and verify fitment height relative to your specific vehicle's rear suspension setup.

Is this functional aero or cosmetic?

The AF-1 diffuser is designed to enhance rear-end visual balance and support aero flow patterns. It delivers styling impact; performance gains depend on total aero package and vehicle speed range. Treat it as a visual upgrade that works within a complete rear-end design.

What prep work is needed before painting?

Sand and prep the FRP surface thoroughly before applying primer and final paint. The hand-finished blank may show minor manufacturing texture — light sanding ensures even paint adhesion. For best results, apply primer rated for plastic substrates, then your choice of base coat and clear coat.