Will these fit over my existing factory fenders without modification?

Yes — over-fenders are designed to bolt directly over factory panels. Base model fitment is straightforward. If your vehicle has wider factory flares or specific trim packages, verify wheel clearance and mounting points before drilling to confirm alignment with your exact setup.

Do I need to sand and prep these before painting?

Yes. Sand the surface with appropriate abrasive to create tooth for primer adhesion. Once prepped, apply primer and your chosen topcoat. FRP accepts standard automotive finishes when properly prepared.

What fasteners or hardware do I need for installation?

Hardware is not included with the fenders. You'll need fasteners appropriate for your drilling pattern and panel thickness. Consult your vehicle's service manual or reference your OEM fender attachment method to determine bolt size and quantity needed.