Do these bolt directly to factory locations, or do I need to drill new mounting points?

These mount at factory fog light points — no drilling or modification required. Test-fit first to confirm your exact year and model align with the compatible platforms.

Is the switch hard-wired, or does it integrate with my existing electrical harness?

The switch comes as a standalone unit ready to splice into your vehicle's electrical system. You'll need basic wire connectors and a test light to identify the correct power and ground sources.

What if one bulb burns out—can I replace just that bulb, or do I need to buy a whole new set?

H16 bulbs are a standard automotive size, so you can source replacements individually from any parts store. The assemblies are built to allow bulb swaps without removing the entire light fixture.