Do I need to buy bolts separately?

The bracket assembly is included, but fastening hardware is not. Use M6 bolts or equivalent hardware available at any hardware store to secure it to your bumper at the factory mounting points.

Will this require any drilling into my bumper?

No drilling needed. This bracket uses the factory mounting holes already in your bumper—it's a true bolt-on fit.

Does this need paint before installation?

Mounting bracket condition is as-manufactured. Paint or finish it to match your bumper if desired, or leave it as-is if it will be hidden behind the license plate.