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Cobra Forums
2013-14 Shelby GT500
Are plugs a must
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<blockquote data-quote="VNMOUS1" data-source="post: 14025099" data-attributes="member: 36794"><p>No plug change needed until you bump boost a lot. With our Stage 3 package and a 2.40 pulley we tell customers to use stock plugs. Just re-gap to 032.</p><p>TR6 are the cheap way out. Some companies include them in "kits". It's because they're $2 each. Use Motorcraft SP 471s for a platinum or NGK TR7ix for iridium. Same 032 gap. About 3x as costly and will last a very long time as opposed to cheap, copper plugs in a $60k car. </p><p></p><p>Bj</p></blockquote><p></p>
[QUOTE="VNMOUS1, post: 14025099, member: 36794"] No plug change needed until you bump boost a lot. With our Stage 3 package and a 2.40 pulley we tell customers to use stock plugs. Just re-gap to 032. TR6 are the cheap way out. Some companies include them in "kits". It's because they're $2 each. Use Motorcraft SP 471s for a platinum or NGK TR7ix for iridium. Same 032 gap. About 3x as costly and will last a very long time as opposed to cheap, copper plugs in a $60k car. Bj [/QUOTE]
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2013-14 Shelby GT500
Are plugs a must
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