An industry-leading reputation and overwhelming success with BMW cooling has made CSF the #1 cooling choice for the G8X M3/M4/M2. CSF is leading the way in BMW G8X (S58) Cooling and adding another product to the Power Cooling Package. Now CSF is pleased to announce the release of the BMW G8X M3/M4/M2 High-Performance Auxiliary Radiators.

The new CSF Auxiliary Radiators are a great addition to the massively successful G8X Cooling Suite. Like the other cooling systems on the G8X, the aux rads do a pretty good job in stock form. However, once you start adding a lot of power and pushing the car in aggressive driving conditions, the factory systems start to show its limitations. As more and more owners keep pushing the limits of their S58, CSF is here to keep them cool.

BMW G8X M3/M4/M2 High-Performance Auxiliary Radiator (CSF #8321)

• Sold Individually – all applications use 2 auxiliary radiators
• Multi-Fit – Fits Both Left & Right Side
• 2-Row – 42mm High-Performance Core Featuring CSF’s Exclusive B-tube Technology
• Ultra Efficient 5mm Tall Fins with a Multi-Louvered Design for Maximum Surface Area Contact
• Tank Volume and Core Size Increased
• 100% All-Aluminum TIG-Welded Construction
• OEM Style “Quick Connect” Inlet/Outlet
• True “Drop-in Fit” Requires No Modifications to Install
• Includes Detachable Rock Guard
• Individually Leak and Pressure Tested
• High-Performance Upgrade Suitable for Professional Racing, Street Performance, or OEM Replacement
• Satin Black Finish for OEM+ Look

• Applications:
  • 2021+ BMW G80 M3 (incl. Competition & CS) – 6MT & ZF8 Auto
  • 2021+ BMW G82/G83 M4 (incl. Competition, CSL, & CS) – 6MT & ZF8 Auto
  • 2022+ BMW G81 M3 (incl. Competition) – 6MT & ZF8 Auto
  • 2022+ BMW G87 M2 (incl. Competition) – 6MT & ZF8 Auto