Do these plug directly into the factory wiring, or do I need to modify anything?

The harness connects to the existing fog light wiring points — no cutting or splicing. The switch mounts to the dash and ties into the loom. Basic hand tools and a few minutes of routing work is all you need.

Will these bulbs stay amber, or do they need refinishing?

The bulbs ship amber and ready to use. The housings are hard panel construction, so if you want a custom finish down the road, they're paintable — but they work as-is out of the box.

What happens if a bulb burns out after I install them?

H11 bulbs are a standard automotive size and widely available at any parts store or online retailer. Replacement is straightforward — twist out the old one, twist in the new one.