Dyna's TCC ignition coil is specifically designed for Twin Cams. The Dyna coil has a primary resistance of only 0.5Ohms, which is even less as the stock coil. This coil is perfect for stock or any aftermarket Twin Cam ignition system. Fits carburetor equipped Twin Cam Softail 2000-2006, carburetor equipped Touring 1999-2006, Fuel Injected Touring 1999-2001, carburetor equipped Twin Cam Dyna 1999-2006 and Sportster 2004-2006. Installs with the OEM connectors or order kit ZPN 760132 seperately.