D to DS is just a software change, so all your car should do is drop 2 or 3 gears for higher revs.
How odd. Must not've liked the downchange!
Let us know how it goes.
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Gone: 2006 BMW E60 520d SE 6MT
Gone: 2009 BMW E90-LCI 330d SE 6MT
Current: 2012 F30 328i Luxury 8AT
On Order: 2015 Audi A6 Avant Ultra, Black Edition (sorry!)
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