There are a number of different ways to control the GTX motor; Haltech e6k, Tec III, SDS, are some of the stand alone EMS that I would recommend. Or you can also wire up the JDM ECU, or even use the US Stock ECU along with a Cartech FMU, Timing controller, etc. to have it control the motor. It honestly depends on how much time, money, and how knowledgeable you are in mechanics.