Direct Connection performance timer-P4349443

It's all in the directions, it hooks ups like a radio(needs a constant hot wire, and a wire that's hot when the ignition is on, it has hook ups for the sensor and magnets that attach to the driveshaft.) It does not tie into any ignition components etc. Once it's installed you calibrate it and go. It's a stand alone unit, the directions say to give yourself a 4hr block to install it.