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      04-25-2012, 10:09 PM   #345
mineo77
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Drives: 2010 135i,1989 PRO3,2001 530i
Join Date: Aug 2009
Location: Portland,OR

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2010 135i coupe  [7.56]
Quote:
Originally Posted by calhounboi View Post
Axle back for all show no go? You said in your last post that an exhaust isn't a "go fast" mod and others have stated this full system shouldn't show much power gains. So how is it better than an axle back? I think that if this exhaust DOES "create more flow, less back pressure, and increase efficiency of other mods" then we should see power gains. Especially on a car that already has intakes, dp's, and increased boost. What am I missing here?
I have no idea what you are missing here. My point was that if you have no mods, no tune then just get an axle back for a more aggressive sound. if you have mods and a tune that require more flow then you need to redo your exhaust and readapt your tune.
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