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      03-12-2014, 10:39 AM   #8404
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Drives: 135i
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Originally Posted by AWD Addict View Post
Is anyone still running v203?

I've searched like crazy, but I can't find a meaningful description of what's changed compared to the v401.

Can someone sum it up?
Whoa thatís an old revision. V403 maps have significantly revised duty cycle tables, 3D scalar ability depending on fuel, revised VANOS mapping for better response, Iíve found fuel usually comes on a bit earlier and the maps target a bit richer, Iím sure there are numerous other changes. When Cobb does a wholesale revision, itís usually for good reason. The boost curve for one is much smoother than the V3xxx maps. IMO.
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