Will I need new bulbs, or do these come pre-installed?

Bulbs are not included with this assembly. You'll transfer your existing bulbs from the OEM housing or source replacements separately.

Does this mount using factory attachment points, or will I need to drill holes?

Mounts directly at factory points—no drilling or custom brackets needed. Drop-in fit at the existing fastener locations.

Is any surface prep or painting required before installation?

The chrome housing arrives finished and ready to install. No prep, priming, or painting necessary.