7 ohm, Four Tower/Twin Fire Coil. Dynatek Coils : These high tech, top quality coils are designed for maximum performance. They produce spark voltages in excess of 30,000 volts and spark energies second to none. DYNA Coils are made to replace stock coils. Choose from three configurations and five variations of resistance for different applications. DYNA Coils work with point ignitions, aftermarket electronic ignitions and factory electronic ignitions. Please call with any questions regarding this item. We are an authorized Dynatek dealer. International orders take ...