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Thread: My 2010 Sedan
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Old 07-27-2013, 06:34 PM   #5
crice8
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Join Date: Apr 2011
Fan#: 84830
Location: tyler, TX
What I Drive: 2010 Sterling Gray Focus SE Sedan

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Your car will run much much better if you put some Autolite 103 or AR103 sparkplugs in it. Anythign aside from copper in our cars actually hinders performance. I noticed a big improvement with my mods when I went to the A103 plugs
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