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SVT Shelby GT500
pulley with and without tune on a 12
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<blockquote data-quote="Mbiro594" data-source="post: 15664202" data-attributes="member: 180262"><p>I contacted Justin over at VMP about running a 2.5 pulley with a 90mm idler without a tune. He said it is not a problem and he had tested it himself back in 2010 and yielded about 20-30whp. 2010+ is ok to do this with as they have a CAI from the factory and a larger MAF. </p><p></p><p>I am waiting on my tune to arrive but in the meantime was able to have my buddy install the pulley. Definitely an increase!</p><p></p><p>See email below for reference and peace of mind lol </p><p><img src="https://uploads.tapatalk-cdn.com/20170731/843fa438413c2a5faee98118571f9683.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p></p><p>Also:</p><p><img src="https://uploads.tapatalk-cdn.com/20170731/40eb531a3df99e8271da9a69ca312630.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Sent from my iPhone using Tapatalk</p></blockquote><p></p>
[QUOTE="Mbiro594, post: 15664202, member: 180262"] I contacted Justin over at VMP about running a 2.5 pulley with a 90mm idler without a tune. He said it is not a problem and he had tested it himself back in 2010 and yielded about 20-30whp. 2010+ is ok to do this with as they have a CAI from the factory and a larger MAF. I am waiting on my tune to arrive but in the meantime was able to have my buddy install the pulley. Definitely an increase! See email below for reference and peace of mind lol [IMG]https://uploads.tapatalk-cdn.com/20170731/843fa438413c2a5faee98118571f9683.png[/IMG] Also: [IMG]https://uploads.tapatalk-cdn.com/20170731/40eb531a3df99e8271da9a69ca312630.png[/IMG] Sent from my iPhone using Tapatalk [/QUOTE]
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SVT Shelby GT500
pulley with and without tune on a 12
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