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**Factory Guy** · 03-30-2020, 11:09 PM

I would ask your restorer of your gauges if it needs a tach filter, My guess is it doesn't, unless you get "tach noise" I wouldn't worry about installing a filter. I have installed a bunch of tachs over the years and I have never installed a filter on ANY.

03-30-2020, 11:09 PM	#3
Factory Guy Senior Member Join Date: Jun 2019 Location: Midway USA Kentucky Posts: 540	Re: Tach Filter GM 14020025 I would ask your restorer of your gauges if it needs a tach filter, My guess is it doesn't, unless you get "tach noise" I wouldn't worry about installing a filter. I have installed a bunch of tachs over the years and I have never installed a filter on ANY.