Will these mount directly to the factory bumper without modification?

Yes. These are designed for the factory fog light openings on your bumper. No drilling or cutting required—they bolt into the existing locations.

Does the switch wiring need to be hardwired into the vehicle harness?

The switch comes integrated with the assembly. If you're running a clean installation, you may want to tap into your fuse panel or existing lighting circuits for proper power management. Refer to your vehicle's service manual for safe wiring points.

Can I use a different bulb if the H11 burns out?

Yes. H11 bulbs are standard and widely available at any automotive parts store or online. Any H11 replacement will work as a drop-in swap.