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Old 12-21-2008, 11:50 PM   #4
Mahonri
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Join Date: Sep 2008
Location: Utah
Posts: 34
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E3 spark plugs have been tested more and more these days, compared with NGK's they out preform on fuel economy, and overall power. True they may be a few bucks more but in the long run they will pay for themselves. Check out their site, for a comparison test done by the show, "Horsepower"
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