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The Torque Solution billet rear differential insert is a replacement differential mount component for 2014–2020 BMW 230i (F2X) applications, machined from billet material for improved support and reduced compliance compared with worn factory inserts. This differential insert fits the rear mount location and is intended to tighten rear driveline feel without altering other drivetrain components.
Torque Solution 14-20 BMW 230i (F2X) Billet Rear Differential Insert
