sounds like v6... my call: 3.3L tri-power turbo set up w ~ 11:1 compression ratio... Small electric compressor feeds twin scroll and then twin scroll feeds larger diameter Garrett turbo... W wastegates in place to divert exhaust flow from smaller turbos at lower rpm which equates to better low rpm sound or dual twin scroll w cross cylinder bank manifold set up similar to m5 engine... And I'm sure they'll find a way to include the air/ water heat exchangers from m5 set up
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