


If you are using a factory tachometer, or an aftermarket tachometer that does not have shift light controls, you may still use any of the above mentioned shift lights, but you will now need an RPM Switch, an RPM Activated Module, or Playback Box. Examples of these items are 5312, 5313, and 5314, as well as the recently discontinued 5310. Even if you are running no tachometer, you may still use the RPM activated devises, and any of the above shift lights.