Magnaflow or custom 2.5" cat-back exhaust...

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TC2.3

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Black '07 Mazdaspeed6
My concern is that the Magnaflow cat-back is the same diameter as the stock exhaust.:mad: I don't understand why they would do this,(blarf). So besides getting better sound from the car has anyone gotten any results from the exhaust. Whether it be running on a dyno or qurter mile times, anything????? Just wondering so that I know what to do when my SPEED6 arrives from Japan.(cool)
 
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So many exhaust threads...use the search feature and it will answer your question.

Just type in magnaflow.
 
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