Will this bolt straight onto my factory bumper without removing it?

Yes. This grille attaches at the factory mounting points on the bumper cover — no removal needed. You can access the fasteners from behind the bumper opening.

Does this come with mounting hardware?

The assembly itself is included. Mounting hardware is not confirmed — verify your vehicle still has the original factory fasteners before ordering, or source standard automotive clips if needed.

Can I paint this, or does it come primed?

The grille arrives in hard panel form. If you want it body color, light scuffing and primer-and-paint application will be necessary — treat it like any other plastic trim piece.