Do these bolt straight into the factory fog light openings?

Yes. These mount at factory points — no drilling or cutting required. You'll need to wire the switch into your harness, but the physical installation uses existing holes.

What if I need to replace a bulb down the road?

H11 bulbs are a standard type and widely available. Pull the lens assembly, twist out the old bulb, and install a new H11 in its place.

Is any wiring work required, or does it just plug in?

The switch needs to be wired into your electrical system — it's not a plug-and-play connection. This typically takes a few minutes with basic hand tools and a wiring diagram. Your service manual will show the exact points.