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Cobra Forums
2013-14 Shelby GT500
10% Lower + 2.5 Upper on a '13
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<blockquote data-quote="03kbredfire" data-source="post: 15598208" data-attributes="member: 38951"><p>This is the combo that I run. I see at times 20 psi. As long as your tune is matched for combo I would suspect there would not be a problem. I was trying to achieve the same as a 15% lower. This is as close as I could obtain. I also have 67mm VMP TB as well as other items. Never dyno'd. Only logged info and sent to tuner for rev's. Gas in this area sucks. Therefor tune is basically a 91 oct. tune. Other mods to help your decision are headers, off road H, BPS elbow, 127mm JLT, 373 gears, NGK TR7IX, 170* stat. Very similar setup.</p></blockquote><p></p>
[QUOTE="03kbredfire, post: 15598208, member: 38951"] This is the combo that I run. I see at times 20 psi. As long as your tune is matched for combo I would suspect there would not be a problem. I was trying to achieve the same as a 15% lower. This is as close as I could obtain. I also have 67mm VMP TB as well as other items. Never dyno'd. Only logged info and sent to tuner for rev's. Gas in this area sucks. Therefor tune is basically a 91 oct. tune. Other mods to help your decision are headers, off road H, BPS elbow, 127mm JLT, 373 gears, NGK TR7IX, 170* stat. Very similar setup. [/QUOTE]
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2013-14 Shelby GT500
10% Lower + 2.5 Upper on a '13
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