What type of coils do I need to use? Matt May 23, 2018 15:36 Follow Most coils with 2.5-3.5 ohms resistance can be used. For coil application, see the installation guide. If you are unable to determine the coil(s) you need, please call or email us at the number above Related articles What is the difference between Single Fire and Dual Fire? What are the benefits? Why does Dynatek recommend 5 ohm coils for street use and 3 ohm coils for racing? What spark plugs should I use? Will my stock pickup work in single fire mode with the Dyna 2000? How? How come my motor seems to be harder to start or sometimes kick back? Comments 0 comments Please sign in to leave a comment.