Clutch Masters FX300 Clutch Kit (Rigid Hub) - E46 325i SMG, E46 330i 6MT 3/03+, E60 525i/530i, E85 Z4 3.0i/3.0si

Segmented Kevlar friction disc has more grip and less pedal pressure than other HD clutches.

The Clutch Masters FX300 performance clutch for the 6-speed E46 325i/330i, E60 525i/530i, Z4 3.0i/3.0si has a segmented Kevlar disc that has more pressure than full-face discs and their Hi-LeverageTM pressure plate for up to 110% more holding power. The FX300 is for serious autocross or light track use with only small concessions for street use. Clutch Masters is the most advanced BMW clutch upgrade on the market - offering more clutch options and design innovation than any other brand.

The pressure plate in the FX300 is the key to its impressive performance. 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 FX300 is best used on heavily-tuned naturally aspirated E46 325i/330i, E60 525i/530i, Z4 3.0i/3.0si models or with forced induction. It works best in a autocross or light track environment where you want extra grip and capacity and the car is not driven much on the street. The Kevlar disc does not engage as smoothly as organic or Formula discs but can be used for limited street use. A 500 mile break in is required and essential for a smooth engagement. For better street engagement without giving up clamping force, check out the FX350 kit.

Kit includes segmented Kevlar rigid-hub clutch disc, Hi-LeverageTM pressure plate, HD throw-out bearing, and clutch alignment tool. A rigid-hub is a solid disc that is best used with a dual-mass flywheel. It can be used with single-mass flywheels if much more noise and vibration can be accepted.

BMW Fitments:

3 Series
E46 (99-05) > 325Ci
E46 (99-05) > 325i
E46 (99-05) > 330Ci
E46 (99-05) > 330i
5 Series
E60 / E61 (04-10) > 525i M54 (2004-2005)
E60 / E61 (04-10) > 530i M54 (2004-2005)
Z Series
E85 / E86 Z4 (03-08) > Z4 3.0i M54
E85 / E86 Z4 (03-08) > Z4 3.0i N52
E85 / E86 Z4 (03-08) > Z4 3.0si N52