Do these panels require any modification to bolt on?

No. These over fenders are designed to align with factory mounting points. Check your vehicle's existing holes before drilling or fastening to confirm alignment with your specific setup.

What prep work is needed before painting?

Sand the surface thoroughly and clean away all dust before applying your chosen base coat and clear coat. Proper surface prep ensures paint adhesion and finish longevity.

Will these affect tire clearance?

Over fenders extend the body line outward. Verify wheel offset and tire sidewall clearance against the new panel profile before final installation to ensure no contact during suspension articulation.