Transmitting up to 543bhp through the 6-speed manual or 8-speed ZF8 transmission and M xDrive all-wheel-drive system requires exceptional driveline stability. Under hard launches and aggressive gear changes, factory subframe and differential mounts can flex, leading to unwanted rear-end movement. Stiffening your mounting points with polyurethane Drivetrain Bushes and Uprated Diff Polybushes secures the rear differential assembly under heavy torque loads. Enhance shifting precision with Uprated Shifter Mounts, and explore our heavy-duty Differential Mounts and Cradles alongside our range of Misc Drivetrain Parts to ensure power reaches the tarmac without axle tramp.