If you are looking to upgrade your stock coil or want to compliment the performance of your MSD Blaster Ignition MSD 5 6 or 7 the Blaster Coil line is the right choice. All of the Blaster Coils are designed for improved spark output!With a stock points style ignition a ballast resistor must be placed in-line with the positive terminal of the coil. This Blaster 2 Coil is supplied with a 0.8 ohm ballast resistor plus a terminal and boot to fit most applications.Blaster Ignitio n MSD 5 6 or 7 Ignition Control and most late model vehicles with electronic ignitions do not require a ballast resistor.
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