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Old 12-24-2019, 07:52 PM   #74
ManNamedJed
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Join Date: May 2018
Location: Reno, NV
Posts: 177
Re: 1971 4x4 Suburban Project - the 'Family Adventure Wagon'

I had decided that my 'vibration' might actually be a very obnoxious exhaust resonance / drone. The vibes are the same frequency as the exhaust note. It had straight back dual exhaust with no cross over and straight through mufflers, which from what I've read, would be prone to such things.

I'd already bought some 2.5" 'ram's horn' manifolds to replace the stock cast iron truck manifolds, so I decided it was time to put them on.

Not sure it makes a big difference in performance, but they look nice.
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