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Also TGV (modern TVIS) and variable length intake systems are not mutually exclusive. However I would prefer a better design for increasing low rpm intake velocity than the TGV setup.
As for the Hitachi injectors, unless it's going only DI, due to Toyota, Denso and Yamaha patents on the D4-S it won't happen. (Assuming no change in business dealings.)
Finally with boost fidling they can create an artificially flat torque curve (ie add boost to fill any dips).
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