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HEI Tachometer Signal Filter

5 Reviews Write A Review
SKU:
GS-HEI-Filter
$19.99
$8.99
(You save $11.00 )
UPC:
842559106242
  • Free Shipping Over $50

    Free Shipping Over $50Contiguous USA

  • One Year Limited Warranty

    One Year
    Limited Warranty

  • Free In-House Support

    Free In-House Support

Overview

GlowShift's HEI Tachometer Signal Filter is specifically designed for vehicles with High Energy Ignition Systems, and converts the high voltage signal to a more manageable voltage, that allows the tachometer to easily read.

Note: Note: Any vehicle with a High Energy Ignition System (HEI) will require this HEI Tachometer Signal Filter. Many General Motors vehicles within the range of 1975-1990 come equipped with this ignition style. If your vehicle falls between these years, verify this is the type of ignition system in your vehicle. If so, this HEI Tachometer Signal Filter will be required to gain RPM readings.


Tachometer Signal Filter will only work with GlowShift Gauges and not guaranteed to work with other applications.
Tech Specs
Gauge Type: Tachometer
Instructions

Includes an installation guide which is available online and included with your order. You can also visit our library of installation videos which include complete step-by-step tutorials and useful tips on how to install a wide range of GlowShift products.

Download and Print the PDF PDF Instructions View Our Help Center Help Center

Product Reviews

  • Tach
    5

    Posted by Charles on Jul 25, 2019

    The tach installed easy and works as it should

  • needed after 1990
    5

    Posted by John on Jul 16, 2019

    Installed a GS tach in my 1994 Chevy G30 with a 350, the tach was erratic and read way to high. Called GS support center and asked if I needed a HEI signal filter for my 1994 Chevy because their web site states this filter is needed for GM’s between 1975 and 1990. I asked if the filter would work for a vehicle which is later than 1990, and was told to try it, I installed the filter and the problem is corrected.

  • CURED
    5

    Posted by Mark on Apr 20, 2019

    Altho my vehicle wasn't listed as needing it, this product took care of the incorrect tach readings I was getting.

  • Odds are, you need this.
    5

    Posted by Cray Stephenson on Feb 03, 2018

    I wish I hadn't glanced over the part that I probably needed this. Wondered for a few weeks why the tack acted up and registered way high! Bought this and bingo, fixed it. You probably need it to.

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