Thread: NGK Iridium Spark Plugs
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Old May 4, 2006 | 10:43 AM
  #20  
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3rdgenlxi
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Joined: Jul 2003
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From: Atlanta, GA
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check out these plugs. They have the data to prove the increase in HP.

http://www.e3sparkplugs.com/

For a primer on spark plug technology:
http://www.e3sparkplugs.com/techoverview.asp
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