4 New Pulstar PlasmaCore Spark Plugs EF1H10 Developed with the help of a US Department of Energy laboratory Wicked throttle response and idle Gain up to 7 horsepower and 9 ft-lbs of torque Patented internal capacitor creates a high-intensity electrical pulse that ionizes the air-fuel mixture and saturates it with combustion-enhancing plasma. Innovative plasma assisted combustion technology