CSF BMW F Series B58/B48 Front Mount Triple-Pass Heat Exchanger w/Rock Guard

***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,  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