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      07-19-2013, 03:40 PM   #50
solstice
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Drives: 2015 M3 6MT
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Anyone want to guess what this could entitle in terms of effected components and material?
Lightweight materials in "high-rpm parts of the powertrain"

Crankshaft, Pistons, Valves, Camshaft, Turbos, Transmission are a few high rpm powertrain components I can think of. I wonder what materials not already used in the standard engine he is eluding to, titanium sounds too expensive.