The FAST XR-1A LS-Style High-Output Ignition Coil Set is designed specifically for high-compression naturally aspirated, boosted or nitrous-equipped applications making more than 1,000 horsepower. This horsepower range is far beyond the capabilities of OEM coils. The spark energy of the FAST coils is comparable to CDI (capacitive discharge ignition) systems without the need to convert. The Smart Coil design also requires no ignitor module. The FAST XR-1A LS-Style High-Output Ignition Coil Set delivers up to 44,000 volts, 103mJ of energy, and supports a maximum of 19 amps of current and 17 volts. It is designed to work with all OEM equipment, as well as FAST products that support coil-near-plug applications such as the XIM and EZ-LS ignition controllers.