Will these plug directly into my existing wiring harness?

These mount to factory points, but connector compatibility depends on your specific vehicle's harness. Verify connector type before ordering — you may need an adapter harness if your car uses a different plug style.

Do I need to adjust anything after installation?

Yes. After mounting, you'll want to aim the headlights to match your desired beam pattern. This is standard procedure with any headlight swap — use a wall or alignment tool to get the light distribution right.

What condition are these shipped in?

Brand new. Both units ship protected and ready for immediate installation — no refurbishment or testing required on your end.