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CSF

CSF BMW G8X M3/M4/M2 High-Performance Auxiliary Radiator - Single Radiator

Manufacturer part number: 8321

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CODE: CSF8321
$519.00
$485.00 Available to order Sold out
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Compared to the OEM G8X coolers, the CSF units are a significant upgrade. The TIG welded aluminum tanks are much larger than the OE plastic tanks offering superior strength and fluid volume. A larger 2-row 42mm core increases cooling efficiency and capacity. This high efficiency core uses CSF's Exclusive B-Tube Technology and latest 5mm fin technology, maximizing airflow and heat dissipation. These 5mm fins significantly increase the heat exchange surface area improving overall cooling efficiency and recovery while still maintaining good airflow.

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

This Part Fits:

Year Make Model Submodel
2024-2026 BMW M3 Competition xDrive
2024 BMW M3 CS
2021-2026 BMW M4 Base
2021-2026 BMW M4 Competition
2022-2026 BMW M4 Competition xDrive
2025 BMW M4 CS
2023 BMW M4 CSL