Do these use the factory fog light wiring harness?

Yes — they plug directly into the existing connectors in your bumper. No wiring work required.

Will the smoked lens still light up adequately in fog or low light?

The tint reduces brightness slightly, but output remains sufficient for safety. If you run fog lights mostly in daylight or heavy fog, visibility stays solid. Test in your typical conditions before committing if you're in very low-visibility driving.

What about the return process if these don't fit my bumper?

These are designed for factory mounting — no return hassle if install-related issues come up. Unbox them, verify fitment at your bumper opening, and bolt them in. If there's a fitment problem, contact ModSupply directly and we'll sort it.