Will this diffuser scrape on steep inclines or driveway approaches?

The AF-1 profile maintains minimal rear extension to the bumper line. Check your vehicle's approach angle and any aftermarket suspension modifications before installation — aggressive lowering setups may increase clearance risk on driveways or steep ramps.

Does this provide functional aerodynamic benefit or is it cosmetic?

The AF-1 diffuser is engineered with functional geometry to manage rear airflow separation. Real aero benefit depends on vehicle speed, ride height, and overall setup balance — paired suspension and brake cooling modifications optimize the effect.

What finish preparation does FRP require before paint?

Sand and prep the surface with appropriate abrasive media before applying primer and your chosen paint system. FRP benefits from a quality clear coat to protect against UV and environmental exposure after color application.