Dyna S instalation

I installaed the dyna S 3ohms coils and wires. I did not see a resister. There was a rectanguler device under the mount of the old coils I can not identify. What is it???

is it a porcelin looking thing?thats a resistor

It is black made out of the same material as the old coils about the same size of a 9 volt battery. It has two wires connected to it.

If the thing is located near the coils, it is part of an emergency flasher circuit and has nothing to do with your coils.