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

CSF
$ 519.00 $ 485.00
CSF designed the coolers to be a true "Drop-in Fit" for easy installation fitting both left...
$ 485.00

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

CSF designed the coolers to be a true "Drop-in Fit" for easy installation fitting both left and right sides. Each cooler mounts in the factory location and uses the OEM quick connections. The High-Performance Auxiliary Radiators work in conjunction with the rest of the cooling system to reduce temperatures. They not only help keep temperatures in optimal ranges, but prolong the heat soak threshold. There's nothing worse than having your track session cut short because you need to do a cooldown lap.

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.

100% All-Aluminum construction ensures the best performance and durability. The mounting pins and brackets are much stronger and more durable than the OE plastic pod mounting system. In addition, the black finish provides extra protection and offers a stealthy look behind the grilles of your F8X.

With many motorsports teams and race enthusiasts now pushing over 1000 horsepower, the S58 is seeing coolant temperatures well above normal. Once temperatures pass a safe limit the G8X will go into limp mode. Needless to say this can ruin a race, track session, or your overall driving fun in general. CSF is here to keep your S58 running at peak performance.

In addition, the CSF auxiliary radiators also feature integrated bolt on rock guards to keep the coolers safe. You've no doubt heard horror stories about OEM coolers getting punctured and spilling fluids all over the road or track. Now you can feel more confident that your cooling system is safer from road debris.

Features

  • 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
  • New "Track-Spec" 5mm Tall Ultra Efficient Fins with a Multi-Louvered Design for Maximum Surface Area Contact and Heat Dissipation
  • 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
  • 2 Year Limited Warranty

Applications

Year Range Make Chassis Code Model Trim Engine / Trans / Etc Notes
2023-2026 BMW Car M2 - Turbocharged 3.0L L6 -
2026 BMW Car M2 CS Turbocharged 3.0L L6 -
2021-2026 BMW Car M3 - Turbocharged 3.0L L6 -
2021-2026 BMW Car M3 Competition Turbocharged 3.0L L6 -
2022-2023 BMW Car M3 Competition xDrive Turbocharged 3.0L L6 -
2024-2026 BMW G80/G81 M3 Competition xDrive Turbocharged 3.0L L6 -
2024 BMW G80/G81 M3 CS Turbocharged 3.0L L6 -
2021-2026 BMW G82/G83 M4 - Turbocharged 3.0L L6 -
2021-2026 BMW G82/G83 M4 Competition Turbocharged 3.0L L6 -
2022-2026 BMW G82/G83 M4 Competition xDrive Turbocharged 3.0L L6 -
2025-2026 BMW G82/G83 M4 CS Turbocharged 3.0L L6 -
2023 BMW G82/G83 M4 CSL Turbocharged 3.0L L6 -

OEM Part Numbers

  • BMW: 17118095285
  • BMW: 17-11-8-095-285
  • BMW: 17 11 8 095 285

Warranty

Cooling Systems and Flexibles, Inc. (CSF) warrants CSF’s High-Performance Cooling Systems, under normal use and service, to the original purchaser of the vehicle in which the product was originally installed. For more information and details please visit the CSF Warranty Page

SKU# 8321 Warranty Term: 2 years

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Return Policy

Studio RSR only accepts cancellations within 24 hours of purchase.

For any products that are NOT Roll Bars, Roll Cages, Harness Bars, or Seat Deletes: To be eligible for a return, your item must be unused, in the same condition that you recieved it in, in the original packaging.

Several types of goods are exempt from being returned – such as; hazardous materials, flammable liquids or gases, consumables, roll cages, roll bars, harness bars, gift cards, and downloadable software.

All Studio RSR Roll Bars / Roll Cages / Seat Deletes are 100% Handmade made-to-order and Lead Times for production are an Estimate. Time is not of the essence. Studio RSR does not accept ANY cancellations after 24 hours of purchase.

International Shipping

We offer international shipping rates lower than most companies. Please note that, during checkout, the current rates and/or exchange tariffs may not be displayed.

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