C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

hi flow cat question

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Old Jan 29, 2007 | 03:22 PM
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When I had my 3" true duals fabbed, I had them add high flow cats right at the header collectors. The cabin was getting super hot so I gutted the cats and the problem was solved. I've been running rich at idle and got that fixed but still smelling fuel. Here's the question: If I had two add'l bullet cats down stream (just in front of the diff), will that help with the smell? Will the cats get hot enough there to function? Also, how much power could I potentially lose?

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Old Jan 29, 2007 | 03:35 PM
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I doubt that cats that far back in the system would heat up enough to do any good.
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Old Jan 29, 2007 | 04:15 PM
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Nope, you may have a leaky injector. I recently removed my precats and have no issues except tires breaking loose.
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