AutoMeter 9117 Tachometer Signal Adapter,Distributorless Ignition

If you have a modern engine, chances are it doesn't have a distributor. If you want to add a tach you're out of luck, unless you buy this neat little box that creates a signal that the tach can read. Simply wire into the power going to the coil pack. Allows any Auto Meter standard ignition tachometer or Digital Pro-Shift System gauge, tube, or controller module to be used on distributorless ignitions. 12 volt. Works with 4, 6 or 8 cylinder engines.