Thread: ngk question
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Old 02-14-2007, 02:11 AM   #2
IHateHacks
20psi boost
 
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Join Date: May 2006
Location: New Haven/Hamden
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NGK Iridium IX

Stock heat range - BCPR6EIX / 5689

One step colder - BCPR7EIX / 5690
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