Spec 07-10 BMW 335i/135i Stage 3 Clutch Kit *Requires SB53A-2 Flywheel*

The SPEC Stage 3 clutch kit uses a high-performance friction disc with a sprung center hub, designed to handle significantly more torque than the factory setup. This makes it a solid choice for BMW 335i and 135i models from 2007 to 2010 that are seeing more aggressive use or have had performance modifications. The sprung hub helps to absorb some of the shock and vibration that can come with a more aggressive clutch, offering a slightly more comfortable engagement than a solid hub design, while still providing the clamping force needed for higher horsepower applications.

This kit is built around a robust pressure plate that offers increased clamping force, ensuring that the clutch disc stays firmly engaged under demanding conditions. The friction material on the disc is chosen for its durability and ability to withstand higher temperatures generated during spirited driving or track use. It's important to note that this Stage 3 kit is a significant upgrade from stock and will result in a firmer pedal feel and a more abrupt engagement compared to your original clutch. Because it's designed for higher torque capacity, it's best suited for vehicles where the drivetrain is being pushed beyond its original limits.

When installing this clutch kit, you must use the SPEC SB53A-2 flywheel, as it is specifically designed to work with this clutch assembly. Proper break-in is crucial for longevity; follow the manufacturer's recommended procedure, which typically involves a series of gentle engagements and moderate driving without hard acceleration or slipping the clutch for the first several hundred miles. This ensures the friction surfaces mate correctly, leading to optimal performance and a longer service life for your new clutch.