Will this interfere with the factory trunk seal or rear hatch clearance?

The R-Speed profile is engineered to sit within the bumper envelope and will not compromise trunk operation. Verify fitment by checking clearance with your hatch in fully open position before final installation.

Can I use adhesive, or do I need to drill into the bumper?

This diffuser is designed for bolt-through mounting at OEM attachment points. Adhesive alone is not recommended for sustained downforce loads at speed. Fastener holes align with factory mounting locations on your RX-8 platform.

How do I prepare the FRP surface for paint?

Sand the surface with appropriate grit and wipe clean before applying your chosen basecoat and clear. Proper surface prep ensures long-term adhesion and finish durability, especially for exposure to road salt and UV.