Do these bolt straight into the factory headlight buckets?

Yes. They use factory mounting points — no drilling or bracket fabrication required. Test-fit before final fastening to confirm alignment.

Will the LED DRLs work with my factory wiring, or do I need a separate relay?

The LED strips integrate into the assembly and connect via the included harness, so no external relay or module is needed. Plug into the factory connector and both low and high beams operate normally.

What if one headlight doesn't light up after I install it?

Check the harness connection first — make sure both plugs are fully seated in the factory connectors. If one side still doesn't respond, test the bulb socket voltage with a multimeter before requesting a replacement.