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2013-14 Shelby GT500
exhaust systems
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<blockquote data-quote="tomshep" data-source="post: 16624080" data-attributes="member: 8203"><p>To Toms point here, yes the 13-14 OTA pipes on GT's do have a factory resonator. </p><p></p><p>I was awake staring at the ceiling fan last night;</p><p></p><p>Ford specs with these resonators were probably adhered to withstand stockish power levels of a GT, not a Shelby GT500. Makes you wonder why they didn't install them OEM on Shelbys?</p><p></p><p>Sort of the comparison between catalytic converters. Brand X makes a Hi flow H Pipe, but than Brand X also makes another Hi Flow H pipe that is considered "green". The reason for the differences in not only price and functionality is the internal metal composition. A "green" mid pipe will hold up under hotter conditions.</p><p></p><p>At this point, I'm looking to swap out OTA pipes simply for the fact mentioned earlier.</p><p></p><p>If nothing else, I'll know first hand how much, if any, those factory resonators aided in sound</p></blockquote><p></p><p>I still need to order the GT pipes, but I am curious to look down into the resonators and see how restrictive they look. The reason I want to try them is because of your car and how you don't have a drone with the SS exhaust. I tried the SS with an otherwise OEM exhaust and the drone was horrible. With these, I hope it takes the edge off.</p><p></p><p>Ford spends substantial funds on getting the "right sound" for their vehicles. I am wondering if they removed the resonators to make the Shelby a little more edgy with the debut of the dual exhaust and the 662 hp . I am hoping they are minimally restrictive for performance but get rid of my drone.</p><p></p><p>Tom</p><p>[/QUOTE]</p>
[QUOTE="tomshep, post: 16624080, member: 8203"] To Toms point here, yes the 13-14 OTA pipes on GT's do have a factory resonator. I was awake staring at the ceiling fan last night; Ford specs with these resonators were probably adhered to withstand stockish power levels of a GT, not a Shelby GT500. Makes you wonder why they didn't install them OEM on Shelbys? Sort of the comparison between catalytic converters. Brand X makes a Hi flow H Pipe, but than Brand X also makes another Hi Flow H pipe that is considered "green". The reason for the differences in not only price and functionality is the internal metal composition. A "green" mid pipe will hold up under hotter conditions. At this point, I'm looking to swap out OTA pipes simply for the fact mentioned earlier. If nothing else, I'll know first hand how much, if any, those factory resonators aided in sound[/QUOTE] I still need to order the GT pipes, but I am curious to look down into the resonators and see how restrictive they look. The reason I want to try them is because of your car and how you don't have a drone with the SS exhaust. I tried the SS with an otherwise OEM exhaust and the drone was horrible. With these, I hope it takes the edge off. Ford spends substantial funds on getting the "right sound" for their vehicles. I am wondering if they removed the resonators to make the Shelby a little more edgy with the debut of the dual exhaust and the 662 hp . I am hoping they are minimally restrictive for performance but get rid of my drone. Tom [/QUOTE]
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