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Old 10-13-2011, 12:35 AM
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Question Stock exhaust diameter/size

I know I have seen this topic on a couple of other threads but I don't have a definitive answer yet. I am just wondering what is the stock diameter size of my 2004 Mazda 3 s. I am looking to do an axle-back muffler replacement and hoping that I can find some that will be a better fit. Any insight will help, thanks!
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Old 05-17-2016, 06:21 PM
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IIRC the stock is 2.5 inch. Mazdaspeed is 3 inch. I had a mazdaspeed exhaust put on my 2006 mazda3 hatch and its pretty dang loud.
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Old 05-17-2016, 06:34 PM
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actually it looks a little smaller than that
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diameter, ehaust, exhaust, mazda, size, stock

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