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The Ultimate BMW B58 High-Performance Heat Exchanger

CSF COOLS the F-Series B58 engine

***Product Update October 2019 Production***

CSF’s pursuit of cooling perfection continues with improvements to The Ultimate BMW B58 High Performance Heat Exchanger. As of October 2019, CSF has released a new and improved β€œVersion 2.0” of the BMW B58 Heat Exchanger.  Improvements include the following Three (3) key updates:

  • Upgraded inlet/outlet design with new tapered entry and exit points from end tanks, resulting in optimized water flow and increased performance (matches OEM spec).*
  • After extensive wind-tunnel, dynamometer (rolling-road test), and field testing, CSF engineers have improved the core spec from Version 1’s 68mm 2-row core with 8mm fin height to Version 2’s Ultra-efficient 42mm 2-row core, with CSF’s B-tube technology, and 6.5mm multi-louvered fin height. *
    • Increase of 15% more cooling tubes used in the core vs. V1 design for better surface area contact and heat dissipation.
    • Results in optimized airflow through the heat exchanger core and into other cooling system components for maximum performance of the entire cooling system. (Especially critical if installed in an X-Drive model with transmission oil cooler placed in front of heat exchanger)
    • CSF V2 design: 2-row 42mm core vs. OEM design: 1-row 26mm core. ~62% increase in core fluid capacity
  • Now includes hardware mounting kit* for applications that have a factory transmission oil cooler mounted in front of the heat exchanger (X-Drive models) 
    (OEM #17118625431).

*World Exclusive

CSF upgraded the inlet/outlet design and improved the core specifications for better air-flow, water-flow, and improved cooling system performance. These updated features result in further lowering Intake Air Temperatures (IATs) of the air-to-water in-manifold charge cooler air cooler system for maximum performance.Β 
  • Hardware mounting kit for applications that have transmission oil coolers (X-Drive models)
The included hardware mounting kit is for applications that have a factory transmission oil cooler (OEM #17118625431).
Example of factory transmission oil cooler (OEM #17118625431) mounted along with included rock guard.

The BMW F-series B58 engine is found in a wide array of BMW vehicles (M140i, M240i, 340i, 440i). The motor is similar to the S55 engine found in the latest generation F8x M3/M4 (and new M2 competition) in that it has an indirect water-to-air charge cooling system with a supplemental front mount heat exchanger to cool the water that circulates through the charge cooler. However, unlike the S55 motor, the BMW B58 charge cooler is built into the plastic intake manifold housing. In the meantime of continued development of its high-performance manifold charge cooler, CSF has first released their new BMW B58 heat exchanger for BMW F-Series vehicles. CSF’s new high performance B58 heat exchanger drastically reduces water temperatures in the charge cooling cycle, which in turn reduces and stabilizes the intake air temperatures of the engine.  With many unique features, included accessories, and of course, 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.

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