This High Performance ignition coil is in fact two Single Fire ignition coils build into a small package. It is so small that it fits the stock coil bracket and stock coil cover in most applications. Coil has a 40,000 Volt output on each side and has a 3 Ohm primary resistance. Works with most aftermarket Single Fire ignitions with electronic advance on single cam Big Twin and Sportster thru 2003.
