hi flo cat size on 02 mustang with 98 headers - Mustang Evolution

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Old 04-22-2014, 02:07 PM   #1
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hi flo cat size on 02 mustang with 98 headers

Ok so I'm getting hi flow cats for my 2002 and my question is what diameter of cats will I need, I have 2.5 piping for my dual exhaust with stock cats. I "upgraded" to some 98 v6 "shorty headers". I know the shop had to widen the connector piece for them to fit.. I'm curious what width of cats I'm going to need to fit correctly. Do I look at ones that fit 94-98, or 99-04 or even just 2.5 cats... I'm not to sure which will fit right since nothing in that area is what came on the original 2002 v6. Thanks for your help.
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Old 04-22-2014, 02:09 PM   #2
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Well if your exhaust pipes are 2.5 that's what yah need
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Old 04-22-2014, 02:19 PM   #3
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So it doesn't matter about the different size of the headers? So just have them the same size as the rest of the piping. I'm using stock cats still and I'm not sure if all that piping is 2.5 inches.. Just from the cats back is I know for sure. So 2.5 should work? I think when they remove the four cats they'll weld in the new cats into new piping I'm assuming? Thanks again
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Old 04-22-2014, 02:21 PM   #4
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Correct and your welcome
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