What hardware do I need to install these over fenders?

The kit includes the panels only. You'll need to source your own fasteners (bolts, washers, and nuts) to mount them to your vehicle's existing fender structure. Reference your vehicle's service manual or OEM fender bolt locations to determine the correct fastener size and torque specifications.

Do these panels come pre-drilled?

The panels ship in raw FRP condition. You'll need to drill mounting holes to align with your factory fender bolt points. Mark your hole locations carefully before drilling to ensure a clean, secure fit.

How should I prepare these for paint?

Sand the surface with appropriate grit to achieve a smooth base, then wipe down with a tack cloth to remove dust. Once prepped, you can apply your chosen primer, sealer, and topcoat. FRP accepts most automotive paints and clear coats without issue.