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Spark Plug Choices
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05-03-2020, 04:55 PM
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911monty
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Join Date: Oct 2014
Location: California Central Coast
Posts: 1,476
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1998 Porsche Boxster
Well could talk gap life, indexing etc. I'll just let a set of the Bosch +4s speak for themselves. These plugs came out of my car at 110k and had 30k on them.
I installed the same replacements.
911monty
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