2008-2014 BMW 135i & 435i xDrive Stage 2 Drag Clutch Kit – Heavy-Duty Performance Replacement by South Bend Clutch Part Number K70526-02-HD-DXD-B

The South Bend Clutch K70526-02-HD-DXD-B Stage 2 Drag Clutch Kit is engineered for high-performance applications on BMW 135i and 435i xDrive models from 2008 to 2014. Designed specifically for aggressive drag racing and heavy-duty use, this clutch assembly provides superior torque capacity, smooth engagement, and enhanced thermal resilience. Its premium friction materials ensure reliable power transfer during high RPM launches, making it an ideal upgrade for enthusiasts seeking maximum performance with durability. The kit’s robust construction is tailored for demanding motorsports environments, delivering consistent performance on the track and during severe street driving.

Built with precision and quality, this clutch kit offers a significant upgrade over stock components, providing increased clamping force and improved heat dissipation. The Stage 2 design strikes a balance between streetability and race-ready performance, ensuring reliable engagement without sacrificing drivability. Whether used for competitive drag racing or heavy-duty street applications, this clutch assembly is an essential component for drivers who demand the highest level of performance and longevity from their drivetrain. Proper installation, including thorough cleaning and resurfacing of the flywheel, is crucial for optimal operation and longevity of the clutch system.

Fitment:
BMW 1 Series M Base 2011
BMW 135i Base 2008 to 2013
BMW 135is Base 2013
BMW 435i Base 2014 to 2016
BMW 435i xDrive Base 2014 to 2016