Clutch Masters CM2 FX350 Clutch/Steel Flywheel Kit - E46 M3

Formula friction disc is the optimal blend of high grip and user friendliness.

The Clutch Masters FX350 performance clutch & flywheel for the E46 M3 uses a lightweight steel flywheel and their Formula clutch disc material that does not give up street use to get high clamping power and grip. Combined with their Hi-LeverageTM pressure plate the FX350 gives up to 110% more holding power. The FX350 is best for dedicated track cars, drift, and drag race cars that may still be used on the street. The easier engagement than Kevlar means this is the preferred clutch kit for hard launches and drifts. Clutch Masters is the most advanced BMW clutch upgrade on the market - offering more clutch options and design innovation than any other brand. The steel flywheel is heavier than aluminum but does a little better job of dampening noise and vibration.

The CM2 kit uses a non-self adjusting pressure plate that produces a more connected and direct engagement feel. Clutch Masters is the only US performance clutch brand to make their own pressure plates in-house (most other companies use a re-branded Sachs part). Not only does this let them control quality to a very high degree but they are able to design a new pressure plate from the ground up. Clutch Masters re-engineered pressure plate design to introduce their Hi-LeverageTM pressure plate with less pedal effort than other performance clutches. By moving the spring plate closer to the fulcrum point, less force is required to push on the diaphragm springs. Pressure plates are also over-built with extra retention straps and heavy-duty rivets - two of the common failure points on stock clutches.

The FX350 is best used on highly-tuned naturally aspirated E46 M3 models or with forced induction. The Formula friction material (also known as Fibertuff) is easier to drive than Kevlar but is not ideal for street use. For better street behavior use the FX200 or FX250 kits (but give up some holding power to get easier use). The flywheel is a Single-Mass design and will have some additional noise and vibration than a stock Dual-Mass flywheel.

SMG Note: we've had success and difficulty with customers using any non-OEM clutch kit with the SMG. Since the problem cases have not been local and we have not been able to inspect, we cannot say for sure what causes drivability and shifting issues with the SMG and an upgraded clutch. Some SMG cars have worked completely fine. For any stock or mildly-tuned SMG car that does not need an upgraded clutch, or for owners who value easy drivability above all else, we would first recommend an OEM clutch for SMG. The above applies to SMG only - we have had zero issues with manuals.

Kit includes steel flywheel, sprung-hub Formula clutch disc, Hi-LeverageTM pressure plate, HD throw-out bearing, assembly hardware, and clutch alignment tool.

For more in-depth details on clutches and flywheels, check out our Clutch Kit Buying Guide (click here).