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      08-20-2012, 06:28 PM   #46
NRG
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Drives: 2012 X5 35d
Join Date: Mar 2007
Location: Montreal QC

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"Disconnecting" the EGR valve will lower the production of soot inside the cylinders and intake by a significant margin. The proof of that is your oil will stay clean for a while after you change it vs it'll get immediately black after a short drive with EGR "on".

The only question is how the DPF will hold up with time and miles if not reprogrammed with EGR "off".

Ecotune very nice gains btw! What is the eco setting? Can you have both or you choose one when remaped?
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