Stock exhaust size - Mazda 6 Forums : Mazda 6 Forum / Mazda Atenza Forum
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post #1 of 2 (permalink) Old 06-25-2019, 08:37 PM Thread Starter
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Stock exhaust size

Does anyone know the stock exhaust diameter? I'm going to do a muffler delete and I'm going to buy some flanges and a pipe adapter. I need to know if I need a 2in to 3in adapter or s 2.5in to 3in adapter. Basically I'm going to weld the flange to the adapter and the. Some 3in pipe to the back with a 3.5in or 4in outlet/tip.

Also another question, has anyone ever thought of running a y-pipe straight off the cat and running dual exhaust all the way back from there?
crue313 is offline  
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post #2 of 2 (permalink) Old 07-07-2019, 12:38 AM
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Hi crue313, stock pipe diameter is 2”.
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