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Cobra Forums
2013-14 Shelby GT500
For the Guys who run a 4L + blower
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<blockquote data-quote="RBB" data-source="post: 15755116" data-attributes="member: 152686"><p>The KB Bigun is your only choice, and yes some material needs to be removed to fit it in the manifold, no big deal.</p><p></p><p>As far as port work goes, there are definitely gains to be had there and by raising the bypass. I had 1320Junkie do mine, and he worked it over pretty good, put quite a few hours into it. Dyno comparisons show a +25HP and 1.5lb boost drop. You can contact him through FB if you're interested in details and pricing.</p><p></p><p>Also, J2Fabrication is doing a 1" flow mod. You send him your intercooler and he ports the inlet and outlet from .50" to .87". You get a billet end adapter and new flow tubes to complete the install. You can also send him your HE and he'll weld on some 1" ends. It's another good mod, definitely brings down IAT2s substantially.</p><p></p><p><a href="http://j2fabrication.com/product/gt500-flow-mod/" target="_blank">http://j2fabrication.com/product/gt500-flow-mod/</a></p></blockquote><p></p>
[QUOTE="RBB, post: 15755116, member: 152686"] The KB Bigun is your only choice, and yes some material needs to be removed to fit it in the manifold, no big deal. As far as port work goes, there are definitely gains to be had there and by raising the bypass. I had 1320Junkie do mine, and he worked it over pretty good, put quite a few hours into it. Dyno comparisons show a +25HP and 1.5lb boost drop. You can contact him through FB if you're interested in details and pricing. Also, J2Fabrication is doing a 1" flow mod. You send him your intercooler and he ports the inlet and outlet from .50" to .87". You get a billet end adapter and new flow tubes to complete the install. You can also send him your HE and he'll weld on some 1" ends. It's another good mod, definitely brings down IAT2s substantially. [URL]http://j2fabrication.com/product/gt500-flow-mod/[/URL] [/QUOTE]
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2013-14 Shelby GT500
For the Guys who run a 4L + blower
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