Twin Tec Single Fire Mini Coil KitTwinTec 3 Ohm mini coil kit Very powerful package, spark voltage is in excess of 45,000 volts measured over the entire rpm range, and spark energy is as impressive. Despite their size of just 31 2"x11 2"x23 4" (85mmx40mmx60mm), the energy storage capability and power reserves are very high. The 3 Ohm coils are compatible with Single Fire ignitions such as Twin Tec's 1005 & 1007 series, S&S Hi 4 and Dyna 2000 series. Features a wire set, which is pre