The blaster coil share the same special windings and high voltage output but do not include a ballast resistor. When you are using an MSD Ignition control, the ignition is responsible for delivering the voltage to the coil so a ballast resistor is not necessary.Product Features: Low resistance and improved turns ratio produces a powerful spark for improved performance Special windings and high voltage output; does not include a ballast resistor Sturdy metal housing is finished in red OBD II and CARB approved; legal for use in all states; D-40-37 SPECIFICATIONS Ballast Resistor Included: No Case Type: Cylinder Coil Color: Red Coil Shape: Cylinder Coil Type: Canister Coil Wire Attachment Type: Socket Coil Wire Included: No Diameter: 2 in Height: 6 in Input Voltage: 12 V Material: Rynite, Metal alloys, Copper Mount Type: Bracket Mounting Location: Stand Alone or Factory Mount Oil Filled: Yes Peak Current: 140 A Primary Resistance: 0.7 ohms Primary Voltage: 45000 V Spark Duration: 350 sec Turns Ratio: 100 to1 r
