Do all four pieces need to be painted separately, or can I paint them assembled?

Paint each piece separately before final assembly. This ensures even coverage on all seams and edges, prevents paint drips into panel gaps, and gives you better control over finish quality. Assemble after paint has fully cured.

What surface prep is required before painting?

Sand all raw FRP panels with appropriate grit to create a smooth base, then wipe clean of dust. Apply your chosen primer and paint system per manufacturer instructions. The FRP surface is stable and accepts standard automotive primers and topcoats without additional bonding agents.

Will seam tape or gap filler be necessary between the kit pieces and factory body panels?

Minor gaps are normal with any body kit installation. Use quality automotive seam sealer or gap filler along panel transitions before primer to create a seamless finish and prevent moisture intrusion. This is standard practice regardless of kit brand or material.