Do these require primer and paint before install?

Yes. These ship in raw FRP condition, so sand and prep the surface before applying your chosen finish. This ensures proper paint adhesion and a clean final look.

What fasteners do I need to mount these?

These bolt over factory fender lines. You'll need to source bolts, washers, and hardware appropriate for your mounting points. Reference your vehicle's service manual or the factory fender attachment pattern to determine fastener size and torque specifications.

Will these fit if my fenders have been repaired or modified?

Over fenders mount to the existing fender structure, so any dents or damage on the factory panel underneath will affect fitment. Inspect your fender condition and ensure the surface is flat before installation. If your fenders have been repaired, verify the repair sits flush with the rest of the panel.