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      12-24-2010, 03:01 PM   #79
tscdennab
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Drives: BMW 335i
Join Date: Oct 2010
Location: Europe

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2008 BMW  [6.24]
Quote:
Originally Posted by packinDSS View Post
I really believe your homade downpipes are costing you power. I know they are a bitch to change but they will be worth it.
I will probably order 3" downpipes after Christmas. But I am pretty positive I still need to do more than this, they cannot possibly account for ~25whp. But we'll see
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