The Mishimoto transmission cooler for 2021+ BMW G8X M-series applications upgrades the ZF 8-speed cooling with a larger, more efficient core. It offers a 41% increase in core volume and 17% more fluid capacity, using a dual-pass design and internal cooling fins to remove heat without restricting airflow. A steel stone guard protects the cooler; no vehicle modifications are required and the cooler ships with a Mishimoto Lifetime Warranty.
Mishimoto 2021+ BMW G8X M3/M4 Transmission Cooler