Genuine BMW M Performance limited slip differential for F20, F22, F30 and F32 models - specifically for automatic-transmission M140i, M240i, 340i and 440i. Not compatible with xDrive or manual variants.
Factory torque-sensing mechanical LSD - no brake-based simulation, just predictable, progressive grip
Direct-fit retrofit; retains OEM mounting, geometry and warranty coverage
Noticeable improvement in corner exit traction, wet-weather stability and balanced rear-end response
Part number 33108659989 - genuine BMW, not a pattern or copy
