Do these connect to my factory wiring harness?

Yes, these integrate directly into factory electrical connections. HID ballast and igniter modules are pre-wired for plug-and-play installation on your vehicle's existing harness.

Will these fit without any cutting or drilling?

Correct. These mount at factory rocker points with no drilling needed. Test-fit before final installation to confirm clearance with your specific chassis condition.

Do I need to do any prep before installation?

Standard install prep applies—clean mounting surfaces and ensure headlight buckets are free of debris. No painting or special surface treatment required on these units themselves.