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New Edge Cobras
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<blockquote data-quote="brkntrxn" data-source="post: 5948026" data-attributes="member: 12396"><p>There is no way that the two factory mufflers offer more restriction to the factory exhaust than the four catalytic converters (2 pre and 2 cats). While I cannot dispute the Magnaflow info you posted because they obviously did the testing, I cannot enitirely agree with it either. Good reading, nevertheless. </p><p></p><p>I have had and worked on quite a few Mustangs (5.0 and 4.6) and an F150 or two where the mid-pipe swap was the most effective difference felt in the exhaust work. Any time you take out four honeycombs and replace them with two high-flows, you are reducing the restriction.</p><p></p><p>Here is an article I found that MM&FF did on a 96 Cobra. That system has 6 cats vs our 4, but you can see their findings.</p><p></p><p><a href="http://www.musclemustangfastfords.com/projectcars/mmfp_0601_1996_ford_mustang_project_car_part_3/index.html" target="_blank">http://www.musclemustangfastfords.com/projectcars/mmfp_0601_1996_ford_mustang_project_car_part_3/index.html</a></p></blockquote><p></p>
[QUOTE="brkntrxn, post: 5948026, member: 12396"] There is no way that the two factory mufflers offer more restriction to the factory exhaust than the four catalytic converters (2 pre and 2 cats). While I cannot dispute the Magnaflow info you posted because they obviously did the testing, I cannot enitirely agree with it either. Good reading, nevertheless. I have had and worked on quite a few Mustangs (5.0 and 4.6) and an F150 or two where the mid-pipe swap was the most effective difference felt in the exhaust work. Any time you take out four honeycombs and replace them with two high-flows, you are reducing the restriction. Here is an article I found that MM&FF did on a 96 Cobra. That system has 6 cats vs our 4, but you can see their findings. [url]http://www.musclemustangfastfords.com/projectcars/mmfp_0601_1996_ford_mustang_project_car_part_3/index.html[/url] [/QUOTE]
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