Want to get an Electric Thermofan on your EB-ED V8 ECU without having to add a manual switch? Enable Thermofan control in your ECU with this simple guide and one of our J3 Chips! If you don't have one of our Programmers, we can do this for you. http://www.tiperformance.com.au/Technical/EB-ED%20V8%20Thermofan%20Control.pdf Cheers, Jason