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      07-11-2012, 10:09 PM   #15
Lulz_M3
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Drives: AW 335i 6MT
Join Date: Oct 2011
Location: Jax, Fl

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The N54 was developed to be able to utilize a stratified charge/ultra-lean low load cruising which would increase MPG's. It was disabled in North American markets because the lean burn increases NOx outputs. Someone could tweak a map using ATR if they had the proper knowledge.
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