Thread: Secondary Cat Delete
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      07-12-2018, 10:36 AM   #29
mweisdorfer
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Drives: 2007 Black/Black 335i e90
Join Date: Apr 2011
Location: Holly, MI

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2007 BMW E90 335i  [0.00]
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Quote:
Originally Posted by Bimmer_Engineer View Post
1790 or 1792???
1792 = 2.50"

The OEM exhaust pipes are 2.38-9" wide.

1790 = 2.25" ; 2.25" won't work.
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