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Originally Posted by Hib Halverson
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The Flowmaster catback uses 2.5" pipe and stock is 2.75, however, the decrease in restriction with the Flowmaster cat-back makes using it a net gain.
The Flowmaster resonator, is single in and two out. We modified it to accept a larger inlet.
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Right, I mean an unmodified single inlet. I assumed it was bigger than 2.5". Is that the size where the single inlet hits the resonator?