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After modification: 427 hp and 689 Nm.


Throttle response sharpens like a razor, and the engine pulls like… well, just like that: the B58 inline six under the hood of the M440i uses what’s called a twin-scroll turbo to minimize turbo lag, and it’s backed by a 48-volt mild-hybrid system which is why torque is so instantly available and smoothly delivered.

With PowerChip, it’s not just technology, but a tangible difference that you can feel under your right foot