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Hi flow cats?

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Old Feb 11, 2010 | 07:38 PM
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sonic69's Avatar
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From: Dayton, Ohio
Hi flow cats?
Will it cause any engine codes if I put a hi flow cat on my 05 5.4? I have a magnaflow muffler, but wanted it to flow more. I'm just not sure of the codes.
 
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Old Feb 11, 2010 | 07:59 PM
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From: Pittsburg, Texas
im not sure, does it have 2 or 4 cats?
 
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