Tachometer signal Filter. GM OEM compatible replacement.
Provides a stable reliable signal to the Tachometer for better Tachometer response and performance.
This filter removes ignition spikes, voltage surges, electrical noise, causes by High Energy Ignition systems, and some after market ignition modules.
Compatible as an OEM replacement Tachometer filter for GM vehicles. Compatible with aftermarket ignitions systems such as MSD, Holley, Speedmaster.
Erratic and non-functioning tachometers can be caused by a faulty tachometer signal filter.
Three color-coded wires allow fast and easy fool-proof connections for life-time protection and superior response on all Classic Tachometers.
Includes installation hardware, instructions.