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This is the OEM NGK One Step Colder Spark Plug found in the VQ35DE Engine. 

  • PLFR5A-11 - Factory Heat Range (5) is best for vehicles without any modifications
  • PLFR6A-11 - One Step Colder (6) is best to be used when any engine modifications have been done (Including air intake, exhaust, etc.)

Fits:

  • 2003-2006 Nissan 350Z
  • 2003-2007 Infiniti G35 Coupe
  • 2003-2006 Infiniti G35 Sedan
  • 2003-2008 Infiniti FX35

Available Options:

Quantity:

$7.50

Reviews Ask A Question About This Product

Questions our customers have asked...


Would these spark plugs come pre gapped?

Response: Yes they will come pre gapped within OEM specs.

What's the difference between the PLFR5A-11 and PLFR6A-11 are they gap differently ?

Response: The gap is the same the difference is in the porcelain, and thus temp rating of the plug. We make these choices based on the power adders of a car. If you have questions regarding what is the right selection plug just give us a call.

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