1975-90 GM compatible Tachometer signal Filter.
High Energy Ignition System (HEI) and aftermarket compatible.
Compatible with aftermarket ignitions systems such as MSD, Holley, Speedmaster.
Compatible with Tachometers that are circuit board driven (usually that would be 1975-1990 GM vehicles). Not compatible with Tachometers that are simply a coil.Provides a stable
reliable signal to the Tachometer for better Tachometer response and
performance. protect your tachometer from high voltage ignitions spike
on the tachometer signal wire.
Three color-coded wires allow fast and easy installation.
Includes installation hardware, instructions, and trouble shooting tips.
Provides protection and superior response on all Classic circuit broad driven Tachometers.