Do these use factory bolt holes?

Yes. These mount directly to the existing factory mounting points on your fenders — no drilling or bracket fabrication needed. Just bolt them in place and you're ready to prep and paint.

What prep work should I do before painting?

Sand the surface to your chosen finish spec and clean away all dust before applying your base coat. Whether you spray, roll, or brush is up to you — the FRP panel is ready to accept any automotive paint system.

Will these fit over my current fenders or do I need to remove them?

These are over-fenders that sit on top of your existing factory panels. Install them directly over your current fenders using the factory holes — no removal or modification of the OEM fender needed.