Upgrading to a lightweight aluminum flywheel on your F80 M3 or F82 M4 has many advantages: eliminate potential failures from the original Dual-Mass Flywheel faster revs from less rotational mass more power to the wheels Performance With less mass to spin the aluminum flywheel returns horsepower and torque to the engine. Less power is needed to spin the flywheel and clutch. While engine horsepower doesn't change, more power makes its way to the wheels, making the car faster at all RPM and any speed. The engine can also rev faster to get you into the power band, and turbo boost, sooner.
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