Will these plug straight into my factory wiring harness?

Yes. These are designed as direct replacements—your existing connectors bolt up without modification. If your truck's wiring is original and functional, you won't need an adapter or relay.

Do I need to remove the bumper to install these?

Access varies depending on which tail light you're replacing. Check your service manual for the specific removal procedure; most jobs need basic hand tools and take under an hour per side.

What's the warranty on these?

Warranty details and return process information are available on the product page or by contacting customer service—review those before ordering to understand your coverage.