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Cobra Forums
2013-14 Shelby GT500
question about headers
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<blockquote data-quote="Tob" data-source="post: 13450225" data-attributes="member: 83412"><p>I can't find the CARB EO number for these cats at the CARB website. Are they manufactured by someone else? And "Kook" (while you're on here), these are metallic substrate cats, correct? What is the cell count and how are they bonded to the stainless tube that encapsulates them?</p><p></p><p>I'm asking because historically, this type of cat has failed miserably when used behind a typical GT500. If you move them downstream of their OEM location, they may take longer to light-off and as such a check engine light may appear. I'm as curious as Van is regarding testing and answers other than "we ran it behind___________" and it did fine. In order to receive an EO approval, somebody had to provide evidence to the EPA that these cats do not degrade until a certain number of miles or years have passed, IIRC. I'd just like to know more about the specific vehicles that were used for the testing approval.</p></blockquote><p></p>
[QUOTE="Tob, post: 13450225, member: 83412"] I can't find the CARB EO number for these cats at the CARB website. Are they manufactured by someone else? And "Kook" (while you're on here), these are metallic substrate cats, correct? What is the cell count and how are they bonded to the stainless tube that encapsulates them? I'm asking because historically, this type of cat has failed miserably when used behind a typical GT500. If you move them downstream of their OEM location, they may take longer to light-off and as such a check engine light may appear. I'm as curious as Van is regarding testing and answers other than "we ran it behind___________" and it did fine. In order to receive an EO approval, somebody had to provide evidence to the EPA that these cats do not degrade until a certain number of miles or years have passed, IIRC. I'd just like to know more about the specific vehicles that were used for the testing approval. [/QUOTE]
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2013-14 Shelby GT500
question about headers
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