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Old 04-17-2013, 06:15 PM   #6
I used to drive this
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Join Date: Jan 2006
Fan#: 31579
Location: Chicago, IL
What I Drive: 2010 mazdaspeed3

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I thought 2.5" was loud with one muffler, couldn't imagine a 3" exhaust. 2.5 should be fine if you go sc.
"When does the zetec kick in"
Asked by a Honda enthusiast
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