There are only 9 wires that come out of the standard wiring harness that it comes with, so it would take an auto-electrician or the tuner an hour or less to wire up and install. They are things like positive, negative, rpm, throttle, air flow, injectors, etc. You just wire/splice them into your cars standard ECU then it just needs to be tuned. I have the Manual and install guide for it also, aswell as the tuning software!