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2013-14 Shelby GT500
Coffee Talk - Custom 1 7/8" Stock Sized Exhaust Manifolds
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<blockquote data-quote="SteveWK" data-source="post: 16417810" data-attributes="member: 139323"><p>Thanks for the input.</p><p></p><p>I swear the stock manifolds I saw were noticeably smaller in diameter than the headers, but then again my memory hasn't been up to par lately. Need to find a picture of a header and stock manifold next to each other and I know somebody who might have one.</p><p></p><p>I use to have ARH 1 7/8" long tubes with a 3" h-pipe to the stock mufflers. Was too loud and attracted a lot of attention I didn't want. Jam421, I did feel the same performance gains you felt going to long tubes. It was definitely something I could feel in the seat of my pants. I noticed it immediately.</p><p></p><p>Also, I learned with the last year or so that my h-pipe is 2.5" in diameter and not the stock 2.75". I wonder how much that is costing me. I do plan to up grade that though.</p></blockquote><p></p>
[QUOTE="SteveWK, post: 16417810, member: 139323"] Thanks for the input. I swear the stock manifolds I saw were noticeably smaller in diameter than the headers, but then again my memory hasn't been up to par lately. Need to find a picture of a header and stock manifold next to each other and I know somebody who might have one. I use to have ARH 1 7/8" long tubes with a 3" h-pipe to the stock mufflers. Was too loud and attracted a lot of attention I didn't want. Jam421, I did feel the same performance gains you felt going to long tubes. It was definitely something I could feel in the seat of my pants. I noticed it immediately. Also, I learned with the last year or so that my h-pipe is 2.5" in diameter and not the stock 2.75". I wonder how much that is costing me. I do plan to up grade that though. [/QUOTE]
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2013-14 Shelby GT500
Coffee Talk - Custom 1 7/8" Stock Sized Exhaust Manifolds
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