Flame-Thrower II coils feature a very low resistance which make them the ideal coil for Ignitor II ignition systems as well as many other high performance ignitions. Low resistance and improved turns ratio help to produce up to 45,000 volts. This higher v Product Features:PerTronix 45011 Flame-Thrower II Coil 45,000 Volt 0.6 ohm Black45,000 volts.