After CAT pipe size

[StoneDude76]

Does anybody know what the size of pipe is after the cats and before the y pipe? I may have a deal on a x pipe and some Flomaster 10 series. I may do duels.

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[Statcher1]

I'm thinking its 3". I may be wrong though. It seems like that what my exhaust guy told me he used.


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[Hemi450hp]

Its 2.25-2.5" depending on where you measure. If you are going with duals, I would just run all 2.5" piping from the cats to the mufflers, and then keep the stock 2.25" tailpipes going out to the tips.