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How Do I Find a Colder or Hotter Plug?

Pulstar indicates the heat range by the number "1" or "2" in the plug number.

 

 

  • Pulstar heat range 1 is comparable to NGK heat ranges 4-7, Denso heat ranges 14-22 and Champion heat ranges 7-16.
  • Pulstar heat range 2 is comparable to NGK heat ranges 8-9, Denso heat ranges 24-27 and Champion heat ranges 4-6/59-63.

At this time the colder Pulstar heat range 2 is only available in 2 racing plug designs, BE-2rT and HE-2rT.

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