Just to clarify the term "TwinPower Turbo" means direct injection + turbo; that's it. It has nothing to do with the number of turbochargers or whether the turbo is single vs. twin-scroll.
It is important b/c it allows a higher compression ratio, improved efficiency, more effective intake cycle....
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2014 335i RWD: ZMM, ZDA, ZDH, ZPP, ZTP, 2NH, 2TB, 5DL; Z4A MPPK; AW ext / VB int
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