The High output super ignition coil features "E-Core" technology that produces up to 70% more spark energy than stock coils with outstanding reliability. This unit is recommended for street, strip, circle track racing and drag racing. Internally, the coil has large gauge wire windings for maximum spark current and voltage with better heat dissipation at high RPM. High voltage arcing is minimized through screw-on connectors and a high tension tower. Ideal for use with capacitive discharge (CD) ignition systems.