Do these mount at the factory headlight points?

Yes — these mount at factory mounting points with no drilling or chassis modification required.

What about the bulbs — are they included?

Bulbs are not included. You'll need to transfer your existing bulbs or source replacements separately. Check your vehicle's manual for correct bulb sizes and types.

Does the chrome finish need any prep before installation?

The housings ship chrome-ready. Inspect them before install — wipe down with a soft cloth if needed. Once mounted, avoid harsh cleaners that can damage the chrome finish.