CSF’s high-performance heat exchanger for BMW G8X M3/M4 is a high-quality build that gives owners and enthusiasts peace of mind.

Their new high-performance heat exchanger for the S55 motor cars drastically reduces water temperatures in the charge cooling cycle, which in turn reduces and stabilizes the intake air temperatures of the engine. CSF has made sure that all of the OEM quick-connect components will work flawlessly with their setup.

This unit does not require any type of modifications to be made for installation! Their products are industry-leading performance, it’s without a doubt the best option on the market for every consumer whether it be for a daily driver or a high-performance race car.

The 2-row 42mm core features an ultra-efficient fin design allowing for maximum surface area. A dual-pass flow structure allows the coolant to pass through the core 2 times before exiting allowing for the lowest possible outlet temperature. This kit includes CNC machined OEM-style mounting brackets and fittings for an OEM fit and finish.

Design, Development, and Testing

The CSF Heat Exchanger features a 2-Row (vs. OEM single row) Core that is 42mm thick with CSF’s Exclusive B-Tube Technology. Increasing the size of the core and end tanks adds to the overall volume of the system, which helps absorb more heat. The more efficient core helps dissipate more heat from the design and provides better airflow into the radiator that sits behind the heat exchanger. For vehicles equipped with the ZF8 Automatic Transmission, the heat exchanger core specifications were designed concurrently with CSF’s new Race-Spec Dual Core Transmission Oil Cooler.

The Black Rock Guards offer complete protection for the heat exchanger (above and below the crash bar), especially when paired with aftermarket “open face” race-style grilles. These grilles have become quite popular for performance and aesthetics, and keeping your heat exchanger safe from debris is very important.