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Cobra Forums
2013-14 Shelby GT500
Spark plugs
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<blockquote data-quote="DG500" data-source="post: 15457914" data-attributes="member: 148777"><p>I have not found any info on this online, so I thought I would share. I pulled my stock plugs on my '14 GT500 and found that the stock motorcraft CGSF-12YP also number SP-536 is actually an NGK plug. The NGK part number is stamped on the nut portion with FoMoCo CGSF-12YP on the porcelain. The NGK # is ITR6G9. Its an Irridum with the same specs as a TR6IX only is doesn't have the tapered electrode and comes with a .036 gap where ther TR6IX comes with a .040 gap. Just thought I would share. Also my terminator used to eat through a set of TR6s every 5k or so.</p></blockquote><p></p>
[QUOTE="DG500, post: 15457914, member: 148777"] I have not found any info on this online, so I thought I would share. I pulled my stock plugs on my '14 GT500 and found that the stock motorcraft CGSF-12YP also number SP-536 is actually an NGK plug. The NGK part number is stamped on the nut portion with FoMoCo CGSF-12YP on the porcelain. The NGK # is ITR6G9. Its an Irridum with the same specs as a TR6IX only is doesn't have the tapered electrode and comes with a .036 gap where ther TR6IX comes with a .040 gap. Just thought I would share. Also my terminator used to eat through a set of TR6s every 5k or so. [/QUOTE]
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2013-14 Shelby GT500
Spark plugs
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