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SN95 Cobras
Another quick exhaust question. 2 1/4 - 2 1/2
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<blockquote data-quote="Chris_98Cobra" data-source="post: 16126777" data-attributes="member: 193060"><p>I was measuring my exhaust to see which muffler size I needed and realized something. The previous owner installed a catted x-pipe. The exhaust manifolds are stock and the cat back is stock with Flowmasters replacing the factory mufflers. </p><p></p><p>The x-pipe is 2 1/2 inch, the stock cat back pipes are 2 1/4. The flanges match up fine and there are no leaks. My question is, how would that effect things going forward? In a few months I will be adding headers and planning on changing out the mid-pipe to an off road, then I wanted to get rid of those Flowmasters and go with Super Turbos. I never intended on replacing the rest of the cat back pipes, just cut out the FMs and weld in the STs. So that means I'll have headers, a 2 1/2 mid pipe and 2 1/4 cat back. I really don't want to have to buy a new cat back if I don't have to, I'm just not sure if that 1/4 inch smaller cat back will have any real negative effect on things.</p></blockquote><p></p>
[QUOTE="Chris_98Cobra, post: 16126777, member: 193060"] I was measuring my exhaust to see which muffler size I needed and realized something. The previous owner installed a catted x-pipe. The exhaust manifolds are stock and the cat back is stock with Flowmasters replacing the factory mufflers. The x-pipe is 2 1/2 inch, the stock cat back pipes are 2 1/4. The flanges match up fine and there are no leaks. My question is, how would that effect things going forward? In a few months I will be adding headers and planning on changing out the mid-pipe to an off road, then I wanted to get rid of those Flowmasters and go with Super Turbos. I never intended on replacing the rest of the cat back pipes, just cut out the FMs and weld in the STs. So that means I'll have headers, a 2 1/2 mid pipe and 2 1/4 cat back. I really don't want to have to buy a new cat back if I don't have to, I'm just not sure if that 1/4 inch smaller cat back will have any real negative effect on things. [/QUOTE]
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Another quick exhaust question. 2 1/4 - 2 1/2
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