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LittleRedWagon5
09-22-2008, 04:47 PM
Does anyone know the diameter of the stock MS3 piping ?
Mazda3OnSpeed
09-22-2008, 08:51 PM
I believe its 2 1/2 in piping. correct me if im wrong :D
AAMguy
09-22-2008, 11:22 PM
2.5, measure it a week or so ago.