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The best Spark Plug?

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Old Apr 19, 2012 | 09:25 PM
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bertthebudman
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Default The best Spark Plug?

What is the best all around spark plug for a 99 80" EVO? NGK seems to have the upper hand but I just cant bring myself to put it in an american made machine! Is it the best? Just a stock engine, no big Mods. ( yet ), what is your opinion and why?

Thanks for reply !!
 
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