The factory BMW flywheel is a 2 piece design that mitigates vibration and creates a comfortable driving experience. A single piece aftermarket flywheel will allow the engine to rev quicker and gives shifting a much more direct and mechanical feel. This also makes clutch modulation on spirited takeoffs much easier and more predictable and is a must if you plan on tracking or competing in your BMW.
The JB Racing Lightweight Aluminum Flywheel decreases rotational inertia, allowing your engine to spin up and drop revs significantly faster. Paired with a robust Sachs Clutch Kit, you get proven OEM quality friction materials designed to withstand aggressive shifting
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