Do I need to replace the bulb, or does it come with one?

The housing assembly is sold without a bulb. You'll transfer your existing bulb from the old headlight or source a replacement separately — keeps the cost down and lets you pick the exact type you want.

Will this fit without any modification to my vehicle?

Yes. This mounts at the factory anchor points with no drilling or bracket work needed. Hand-tighten the fasteners into your existing mounting tabs and you're done.

Does the chrome finish need any prep or protection after installation?

The chrome housing arrives ready to install. Once mounted, treat it like any exterior chrome — occasional wash to keep it clean. No paint or special sealing required.