Do I need to replace the bulb or ballast separately?

The assembly comes as a complete unit. If individual HID bulbs or ballasts fail down the road, they can be sourced separately — but you're not buying bare parts here.

Will this bolt straight to my existing brackets?

Yes. This unit mounts at factory attachment points with no modification needed. Plug the connector and you're done.

What's your return window if it doesn't fit?

Test-fit before final installation. If there's a problem, contact customer service with photos — we'll handle it from there.