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.
How it works: Dual (or twin) mass flywheels are made of two separate flywheel disks separated by a friction ring, and coupled through torsion dampers: springs and planetary gear sets. Transmitting drive from the engine to the transmission through vibration dampers isolates crankshaft torsion spikes, reducing transmission gear rattle, gear selection effort, and synchronizer wear. Failed dual mass isolation springs and gears cause noise and vibration. Includes new pilot bearing as well as 8 OEM flywheel bolts and Schwaben's hard-to-find T60 torx socket for removal and installation of flywheel bolts.
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