Do these plug directly into my factory wiring, or do I need a harness adapter?

These come with a harness designed for OEM wiring compatibility. No external modules or adapters required—connect the supplied harness to your stock headlight connector and you're done.

Will the sequential turn signals work without any extra installation steps?

The sequential function is built into the harness that comes with the lights. Once you plug in the headlight connector, your turn signals automatically sequence left-to-right or right-to-left based on which way you signal. No programming needed.

Can I return these if they don't fit or look right once installed?

These are designed for direct bolt-on installation at factory mounting points. Test-fit before fully securing. Contact ModSupply's customer service with photos of fitment issues—they'll walk you through your options.