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CSF Race High-Performance Auxiliary Radiator for BMW 2er (G87) M2 / 3er (G8X) M3 / 4er (G8X) M4
CSF Race High-Performance Auxiliary Radiator for BMW 2er (G87) M2 / 3er (G8X) M3 / 4er (G8X) M4
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
- 2 Year Limited Warranty
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
OEM Part Number: BMW: 17 11 8 095 285
G8X S58 Cooling System
The G8X S58 cooling system is decently complex. Diagrams have been included to show the details of how the whole system flows.
The cooling system consists of 6 to 7 heat exchangers depending on your transmission. Numbers below refer to the graphic above.
1. Oil Cooler
• CSF #8266 – High-Performance Engine Oil Cooler
2. DCT Transmission Cooler
• CSF #8221 – ZF8 Automatic Transmission Oil Cooler
3. Auxiliary Radiator (Right Side) – Charge Air Cooling System
• CSF #8321 – High Performance Auxiliary Radiator
4. Front Mount Heat Exchanger – Charge Air Cooling System
• CSF #8215 – High-Performance Front Mount Heat Exchanger
5. Radiator – Engine Cooling System
7. Charge Air Cooler – Charge Air Cooling System
• CSF #8233/8233B/8233C – Charge-Air-Cooler Manifold
10. Auxiliary Radiator (Left Side) – Engine Cooling System
• CSF #8321 – High Performance Auxiliary Radiator
Because each auxiliary radiator is used for a different system you can elect to replace one at a time. For those looking to further improve the Charge Air Cooling system replace the right side auxiliary radiator. Those looking to improve the engine cooling system should replace the left side.
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