The South Bend Clutch K70380-SS-X-SMF Stage 4 Extreme Clutch Kit is engineered for high-performance BMW M3 E46 models from 2001 to 2005, featuring a robust design tailored for demanding street and track use. This heavy-duty clutch assembly provides superior torque capacity, ensuring reliable power transfer during aggressive driving, towing, or high-horsepower applications. Designed with high-quality friction materials, the kit guarantees smooth engagement and minimizes slippage under severe load conditions. With an emphasis on durability, it is ideal for enthusiasts and professionals seeking a long-lasting, performance-oriented clutch solution for their BMW M3.
The kit’s enhanced thermal capacity helps dissipate heat efficiently, preventing clutch fade during extended high-RPM sessions or towing. This results in consistent clutch performance and maximized drivetrain reliability. Whether upgrading for increased power or replacing worn components, this clutch assembly offers a premium replacement option that combines performance, durability, and ease of installation, making it suitable for fleet, street, and track applications. Proper installation and break-in procedures are critical to maximize the lifespan and performance of this high-performance clutch system.
Features:
- Heavy-duty diesel and fleet torque capacity for demanding applications
- Premium friction materials for smooth, chatter-free engagement
- Enhanced thermal capacity to prevent clutch slippage during severe towing or high-horsepower use
- Designed for long-term drivetrain reliability and performance
Fitment:
BMW M3 Base 2001 to 2005





