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      10-26-2007, 06:16 PM   #47
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Drives: '93M5 '00 323iT
Join Date: Jul 2007
Location: Chicago

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Originally Posted by Remus View Post
No, we have sucessfully proven in the past that equal gains can be had from axle-backs compared to cat backs. Obviously this varies depending on the exhaust layouts.

I just thought that back exhaust is for the sound alone. Ok lets say maybe for 1hp gain that's all.
But hey..what do I know? I've only dyno tested exhaust to its limits on my M5
'93 DV M5 223+ K miles
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