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      02-13-2012, 01:19 PM   #86
MaximusJ
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Drives: 325i 2006
Join Date: Jul 2010
Location: Quebec, Canada

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'06 E90  [3.72]
Define better. Better performances; yes, but the overall comfort and unreliability makes the aftermarket headers not worth it to many people. But the faulty sensors + lesser quality fuel is really looking for trouble.

But for somebody that doesnt mind having a christmas tree in the cluster; i'm sure its a good decision; performance wise. Even the O2sims seams to give SES on a random schedule. People that bought SS or OBX headers had the same issue with the SES.