[First Street Ignition]

That is what I understand. We have extended our wires both coil and primary wiring so it will work either way.
This took me by surprise, after dealing with the old coils with heavier wiring I did not even think about this.
Brent mentioned in a different post most manufacturers have had to lower quality to meet the low prices we think we want. If you buy low price, don't look at it too close.