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Old 05-25-2019, 02:05 PM   #1
cj847
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Join Date: Sep 2016
Location: Ft Smith, AR
Posts: 558
what the heck

I am 60 years old and have worked on cars my whole life, but I have never seen one of these. It is some kind of spark plug extension. I cannot think of a purpose other than to decrease performance and drive ability in every way. Does anyone know what and why it exists? I am removing them and installing the plugs directly.
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