Just from an engineering background, they could be a transformer. They could increase the amperage or the voltage, but I doubt that much. Heck it the same thing as the transformers that are outside your house. Just the ones for your house are step down transformers and these are step-up. I bet it increases the voltage that much which in turn increases the amperage. But I also agree with the preignition aspect. I would like to see more data over an extended period of time.