Thread: Spark Plugs...
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Old Dec 5, 2012 | 02:06 PM
  #32 (permalink)  
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rfourt
Joined: Jun 2012
Posts: 170
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From: Tuscaloosa, Alabama
Default Re: Spark Plugs.....

Here's some info from NGK http://www.ngksparkplugs.com/pdf/DYK...idium%20IX.pdf

Doesn't really address colder vs. stock, but does highlight the differences between iridium and laser iridium
 
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