MSD designed this 86415 6-EFI Ignition Coil to match the MSD Atomic EFI or similar throttle body fuel injection system with a 6EFI ignition box. This is designed to work with MSD 6EFI ignition part number 6415 as well as other 6-series ignition boxes! Included is a laser-etched mounting bracket, self-tapping screws to mount the coil as well as a plug-in wiring harness for easy installation. These coils produce high spark energy to ensure that air and fuel in the engine are completely burned. As a result, the starting and throttle response improve as well as supply a powerful spark throughout the RPM range. In addition, a spark plug wire boot and terminal are included in the kit that allows female/socket connections to be converted to male/HEI connections if needed. MSD 86415 6-EFI Ignition Coil Features: Maximum Voltage: 45,000 Volts Inductance: 4.34 mH Peak Current: 300 mA Primary Resistance: 0.430 OHMs Secondary Resistance: 4.60K OHMs Turns Ratio: 80:1 Coil Color: Black Coil Shape: Square Coil Style: Remote Mount Coil Wire Attachment: Male/HEI Coil Internal Construction: Epoxy Ballast Resistor Included: No Coil Wire Included: No Mounting Bracket Included: Yes Quantity: Sold Individually Street cruisers as well as Top Fuel dragsters trust MSD's ignition systems as the industry leader for over 40 years. MSD continues to push the envelope with cutting-edge ignition technology as well as intake manifolds and EFI systems.