HT0 or one step colder plugs - 12mm (updated head plugs)

Greg Hazlett

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What year heads do you have? Mid 09+ have the one piece/normal plugs.
 

TexasBlownV8

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you can get the NGK ZNAR7AIX #7554, usually at a decent price new from rockauto. Those at the 1-range colder plugs I use in my '09 engine.
 

slackinoff

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you can get the NGK ZNAR7AIX #7554, usually at a decent price new from rockauto. Those at the 1-range colder plugs I use in my '09 engine.

Thanks for the tip! NGK is a quality company. I will most likely use these.
 

TexasBlownV8

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I have a used set I'll sell for $40 and get them to you in person ;) They're a spare set I pulled from my engine after some use.
 

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