Our total loss coils are designed for use with inductive ignition systems like the Jetinetics Heat, One Shot, KV, and other inductive systems. They are powerful, reliable, and have easy mounting features to make installation a breeze. This 1.5 OHM coil is designed to produce a more powerful spark and is intended for racing use. They draw more current than their 3.0 Ohm counterparts and produce a much hotter spark. Caution needs to be used because they draw more current, therefor they can place more stress on the ignition system's internal components. These are intended for racing or intermittent (short term) use.