The SPEC SS-Trim twin disc clutch kit is specified for 2007–2009 BMW 135i, 335i and 535i with the N54 engine. Offered as an O-trim twin-disc configuration, the kit replaces the factory clutch with a multi-disc setup intended for higher torque capacity, and is labeled to fit the listed BMW N54 model years and applications.
Spec 07-09 BMW 135i/335i/535i (N54) SS-Trim Twin Disc Clutch Kit