Spec 2011 BMW 1M / 11-12 BMW 135 / 11-17 335 SS-Trim Twin Disc Clutch Kit

SPEC is known for making well-built drivetrain components, and this SS-Trim Twin Disc Clutch Kit is a prime example of their work for performance BMWs. If you're looking to handle significantly more power than the stock clutch can manage, especially in a 2011 BMW 1M, 2011-2012 135i, or 2011-2017 335i, this kit is designed to get the job done.

This is a twin-disc setup, meaning it uses two friction discs instead of the usual one. This design dramatically increases the surface area for engagement, which is how it handles higher torque loads. The SS-Trim designation means it uses a solid iron center hub for the discs, which is a strong choice for durability and direct engagement, especially when paired with a performance flywheel. This setup is built to withstand the demands of spirited driving and track use where a single-disc clutch might start to slip or overheat. The kit includes the necessary components to replace your entire clutch system, ensuring a complete and effective upgrade.

When installing a twin-disc clutch like this, it's important to ensure your flywheel is in excellent condition, as it's a critical part of the system's performance and longevity. Because this is a performance-oriented component, it's often paired with other drivetrain upgrades to maximize its potential. Always refer to the manufacturer's installation instructions for specific details regarding torque specifications and break-in procedures.