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      04-27-2014, 11:15 PM   #37
rac
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Drives: 2008 135i 6MT
Join Date: Mar 2014
Location: Perth, Australia

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old thread but lucky i found it. I searched quite a bit, gave up, photographed my dodgy outlet pipe, was just about to post and ask, then i found this thread!

it is good to know that it is as per design, but hard to believe it wouldn't have some affect on performance at some point. my question: does anyone have a before and after dyno mod example of this yet? (that didnt also have a ton of other mods done at the same time).

r.
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