Ohh boy there is a lot of things involved. I just recently did my Bluebird in my 96 200sx and there is a lot of stuff like harness, Ecu, 02's, and a bunch of sensors you gotta change from your stock motor to the DET. 1st of all you need either an S-AFC controller if you wanna run your ECU or what is best recommended is the JWT ecu. You can use your stock harness as long as you change some of the sensors. This is some of the stuff but not all.