Dynatek Miniature Coils 3 Ohm Dual-Outputs Dual-Fire Single Plug Dynatek Miniature Coils are designed for use with Dyna 2000 and 3000 series ignitions, factory-installed electronics, or with aftermarket ignitions that employ dwell control. One of the smallest packages delivers high output with advanced magnetic core technology and are perfect for coils that need to be hidden. Features: High tech, top quality coils designed for maximum performance Secondary resistance is 11.5 ohms 3ohm Dual Tower coil single-fire Dual-plug Made in USA Note: Not for Twin Cam applications. Note: Not for use with the Dyna S, Dyna III or earlier generation ignitions