Do I need to prepare the surface before installing these?

Yes. Sand the mounting area on your existing fender to bare plastic or metal for proper adhesion, then clean thoroughly. Your installation method (adhesive, fasteners, or hybrid) will determine prep specifics — reference your chosen mounting system's requirements.

What fasteners or hardware do I need to bolt these on?

These ship as unpainted panels only. Fastener selection depends on your mounting strategy — factory hole alignment, additional drilling, or adhesive-based installation. Measure your factory mounting points and compare to the over fender hole pattern to confirm compatibility with your vehicle's setup.

Can I paint these myself, or do they need professional finishing?

FRP accepts standard automotive primers and paints. Sand the surface with appropriate grit and apply your chosen primer and topcoat system. Professional or DIY finishing works equally well — the preparation and paint quality matter more than the installer.