EFIE Deluxe Series

This is our flagship EFIE product, and the one we recommend to hobbyists who are working on a fuel saving system. These models include an enclosure, an on/off switch, an external set screw to adjust the EFIE, and test ports where you can plug in your multi-meter leads when adjusting it. At one time, this was our only EFIE model, and if we went back to just one model again, this would be it.