Thread: Teaser: Black Ceramic MMW headers
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      10-07-2012, 01:53 AM   #27
mapleridge
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Drives: E90 N52 AT
Join Date: Apr 2011
Location: Vancouver, BC

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Quote:
Originally Posted by BudVlad View Post
It looks like the OEM manifold without cats will be more efficient:
How did you come to this conclusion?
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