This Clutch Masters clutch kit is designed for 2004-2005 BMW 525 2.5L and 530 3.0L E60 6-speed models. It includes a 850 Series Race Twin Disc Clutch with an Aluminum Flywheel. This clutch is designed for high performance and racing applications and is capable of handling up to 800 ft/lbs of torque. It features a sprung hub and ceramic buttons for improved durability and reduced wear. The lightweight aluminum flywheel helps reduce rotational mass for improved engine response and acceleration.