Will this kit require fasteners or hardware to mount?

The kit arrives as raw diffuser panels. You'll need to source fasteners appropriate to your mounting points — measure your rear bumper cutout and existing hardware locations before purchasing bolts or adhesive tabs. Many builders use stainless steel hardware to avoid corrosion at the rear fascia.

What prep should I do before finishing?

Sand the surface with appropriate grit, wipe clean, and apply your chosen basecoat and clear coat system. FRP absorbs moisture, so proper surface prep ensures paint adhesion and longevity. Allow adequate cure time between coats before mounting.

How do I verify this will align with my rear bumper?

Compare the two-piece diffuser profile against your vehicle's existing lower bumper contour and the factory mounting boss locations. Take reference photos of your rear fascia before ordering to confirm the lip sits flush with the bumper perimeter.