BMW Cooling Module (Heat Exchanger and Trans Cooler) - CSF Racing Race 8331

High-Performance SUVs have been all the rage over the last decade with what feels like every manufacturer jumping into the market. Some have done it better than others, but BMW nailed it with their M versions. The F97 X3M and F98 X4M are powered by the same S58 engine found in the G8X M3, M4, and M2. These SUVs are capable of massive power and incredible speeds. However, they stuffer from the same heat issues as their Sedan and Coupe cousins. CSF’s Cooling Systems have become core upgrades for S58 owners, even ones keeping the engine mostly stock.

Many owners have been upgrading their X3Ms and X4Ms with the CSF “Level Up” Charge Air Cooler Manifold for years now. The fastest examples are all running the CSF Manifold and have been asking for more cooling upgrades. After over a year of development and testing, CSF is pleased to announce the Front Mount Heat Exchanger & Transmission Cooler Module for the F9X X3M / X4M.

By combining the Heat Exchanger and Transmission Cooler into a full cooling module, CSF was able to run the same size core as the G8X Heat Exchanger. The Auto Transmission Cooler uses the same dual-core design as the G8X Transmission Cooler which is fitted to the new Heat Exchanger. This creates a cooling module that comes as a single unit. The combination not only solves two cooling issues for the X3M and X4M, but also lowers costs which are passed along to the customer.

The TIG welded aluminum tanks are much larger than the OE plastic tanks offering superior strength and fluid volume. A larger 2-row 42mm core increases cooling efficiency and capacity. This high-efficiency core uses CSF’s Exclusive B-Tube Technology, maximizing airflow and heat dissipation. CSF’s multi-louvered fins significantly increase the heat exchange surface area improving overall cooling efficiency and recovery while maintaining proper airflow.

The CSF Transmission Cooler features a unique dual pass design to maximize cooling performance. You can see in the diagram below how the OEM Cooler’s dual pass design works by flowing across the lower half of the core and back through the top half. This is how traditional dual pass systems work and is perfectly functional. The CSF Front to Back stacked core design more than doubles surface area and almost triples the core volume.