CSF F-Series High-Performance Heat Exchanger

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  • Regular price $599.00

***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 “Version 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


Vehicle Applications:

Year Model Sub-Model Chassis Code Engine Code
15-18 120i 5 doors F20 B48
15-18 125i 5 doors F20 B48
15-18 M140i(X) 5 doors F20 B58
16-18 218i Coupe F22 B38
15-18 220i Coupe F22 B48
15-18 230i(X) Coupe F22 B48/B46
15-18 M240i(X) Coupe F22 B58
16-18 218i Convertible F23 B38
15-18 220i Convertible F23 B48
15-18 230i(X) Converitble F23 B48/B46
15-18 M240i(X) Converitble F23 B58
14-18 320i(X) Sedan F30 B48
14-18 330e Sedan F30 B48
14-18 330i(X) Sedan F30 B48
14-18 340i(X) Sedan F30 B48
14-18 320i(X) Touring F31 B48
14-18 330i(X) Touring F31 B48/B46
14-18 340i(X) Touring F31 B58
15-18 320i(X) Gran Tourismo F34 GT B48
15-18 330i(X) Gran Tourismo F34 GT B48/B46
15-18 340i(X) Gran Tourismo F34 GT B58
15-18 420i(X) Coupe F32 B48
15-18 430i(X) Coupe F32 B48/B46
15-18 440i(X) Coupe F32 B58
15-18 420i(X) Convertible F33 B48
15-18 430i(X) Convertible F33 B48/B46
15-18 440i(X) Convertible F33 B58
15-18 420i(X) Gran Coupe F36 Gran Coupe B48
15-18 430i(X) Gran Coupe F36 Gran Coupe B48/B46
15-18 440i(X) Gran Coupe F36 Gran Coupe B58