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Best Spark Plug Brand

Vaporizyed

La Mesa, CA
Ok, trying to decide which spark plug brand is the best for my Mustang. I have an early 2008 GT, which still had the 16mm spark plugs from the 2007 and older. So do I stick with the Motorcraft SP-462, go with the Autolites, or the Champion 7989? I have heard the 16mm Motorcraft Spark Plugs are two piece spark plugs and are prone to breaking upon removal. I have heard Autolite makes the Motorcraft plugs. Unfortunately NGK's aren't available. Anyone have any experiece with the Champion or should I just stick with the Motorcraft?
 
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