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      03-13-2016, 02:26 PM   #6
madmantwo
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Drives: 2010 e92 335i
Join Date: Nov 2015
Location: Seattle

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Quote:
Originally Posted by trohde78 View Post
The secondary cats do a great job of controlling any smell. It may smell in an enclosed space like a garage, but you'll never smell anything out on the road.
+1. Never noticed any smell with catless downpipes. Cut out my secondary cats and the smell was pretty bad, if it didn't sound so damn good I'd regret it
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2010 BSM 335i 6MT M-Sport w/ MMP Stage 3 Turbos
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