Thread: Oem exhaust piping size?
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      07-28-2012, 07:41 PM   #15
flinchy
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Drives: 130i
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Quote:
Originally Posted by Dackelone View Post
135i N55 mid pipes measure 58mm in outer diameter.
that's the twin pipes yeah? that's 2.25" OD, so 2" ID would be right same as 130i
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