Running an aftermarket EFI system with your factory gauges and want your OEM tachometer to retain it’s function? We have installed this in house with our multi-coil spark builds to ensure OEM tachometers work with our Plug and Play LS2 Multi-Coil spark systems.

This will ONLY work for voltage driven ignition tachometers that feed off of the (-) negative terminal of your ignition coil. Early 70-72 240z and partial 73 year models have a current sensing tachometer that is not compatible, and will require either an aftermarket tach, or upgrading to a 280z tachometer.

This kit is not needed for use with single-coil ignition systems, only for multi-coil spark.