CSF 8321 High-Performance Auxiliary Radiator for BMW M2 (G87) / M3 (G80 / G81) / M4 (G82 / G83)

Radiators Sold Individually

CSF has engineered these radiators as a true "Drop-in Fit" for easy installation on either the left or right side. Each radiator fits into the factory location and utilizes OEM quick-connect fittings. The high-performance auxiliary radiators work in conjunction with other cooling system components to reduce temperatures. They not only help maintain temperatures within optimal ranges but also extend the thermal brink.

Compared to the stock BMW G8X radiators, CSF radiators are a significant upgrade. The TIG-welded aluminum tanks are substantially larger than the plastic tanks of the original design, providing superior strength and increased fluid volume. A larger, 42mm dual-row core enhances cooling efficiency and performance. This high-efficiency core utilizes CSF's exclusive B-Tube technology and the latest 5mm louvered fin technology for maximum airflow and heat dissipation. These 5mm fins significantly increase the heat exchange surface area, boosting overall cooling efficiency and recovery while maintaining good airflow.

The 100% all-aluminum construction ensures optimal performance and durability. The mounting pins and brackets are far more robust and durable than the stock plastic mounting system. Additionally, the black finish provides added protection and offers a stealthy look behind your BMW G8X's grille.

Furthermore, CSF's auxiliary radiators feature integrated, bolt-on rock guards to keep your coolers safe. You've undoubtedly heard the horror stories of stock radiators getting punctured and spewing fluid all over the road or track. Now you can rest assured that your cooling system is securely protected from road debris.

As each auxiliary radiator serves a different system, you can replace one at a time. For those looking to upgrade their charge air cooling system, replace the right-side auxiliary radiator. Those looking to upgrade their engine oil cooling system should replace the left-side unit.

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