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

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

2024-2025

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

## Details

- **Price:** 711.25 CAD
- **Vendor:** CSF
- **Type:** Radiators

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 711.25 CAD | In stock |

## Images

- Photo - Primary
- Photo - Mounted
- Photo - Close Up
- Photo - Close Up
- Photo - Close Up
- User 2
- User 2
- Photo - out of package
- User 2
- Photo - out of package

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/csf-bmw-g8x-m3-m4-m2-high-performance-auxiliary-radiator-single-radiator)
> Updated: 2026-07-05