Do these mount the same way as my factory headlights?

Yes—they use the same factory mounting points. No drilling, brackets, or adapter hardware needed. Bolt them in where the originals sat.

Are the corner markers already wired in, or do I need to run separate bulbs?

The amber corner is built into the housing. You'll want to confirm your vehicle's existing wiring supports a marker light circuit before installation—some trucks run marker wiring, some don't. Test-fit and check your connector before fully securing the assembly.

What condition are these in when they arrive?

These ship as new assemblies, ready to install. They come as complete units—no disassembly, cleaning, or prep work required. Unbox and bolt on.