CSF, a recognized leader in BMW cooling systems, has unveiled its latest innovation for the G8X series M3/ M4/ M2 — high-performance auxiliary radiators. These new additions are part of the popular Power Cooling Package, which has already earned a reputation among enthusiasts and motorsport teams.
Advantages of CSF Radiators Over OEM Versions
CSF radiators significantly outperform standard OEM components. With a TIG-welded aluminum construction, they offer:
- Enhanced durability due to their larger size compared to OEM plastic radiators.
- Improved cooling efficiency with a 42mm two-row core featuring CSF’s exclusive B-Tube technology and 5mm multi-louvered fins for optimal heat dissipation.
- The ability to maintain optimal temperatures even during aggressive driving, reducing the risk of heat soak and preserving performance for longer periods.
| Feature | CSF | OEM |
|---|---|---|
| Core Width | 42 mm | 34 mm |
| Core Rows | 2-row | 1-row |
| Fin Height | 5 mm | 5 mm |
| Tank Material | Fully aluminum | Plastic |
| Construction | 100% TIG-welded | Crimped with gasket |
G8X S58 Cooling System Components
1. Oil radiator
• CSF 8266 - high performance engine oil cooler
2. Cooling transmission DCT
• CSF 8221 - ZF8 automatic transmission oil cooler
3. Additional radiator (right side) - charge air cooling system
• CSF 8321 - high-performance additional radiator
4. Front heat exchanger – charge air cooling system.
• CSF 8215 – high-performance front heat exchanger
5. Radiator - engine cooling system
7. Pressurized air cooler - forced air cooling system
• CSF 8233/ 8233B/ 8233C – charge air cooler manifold
10. Additional radiator (left side) – engine cooling system
• CSF 8321 - high-performance auxiliary radiator
Reliable Radiators for BMW M3/ M4/ M2
CSF radiators are designed as direct replacements for OEM components, fitting seamlessly in factory locations with quick-connect fittings. You can replace only one auxiliary radiator: the right for improved charge air cooling or the left for better engine cooling.
High-Performance Auxiliary Radiator for BMW G8X M3/ M4/ M2
Made with a 100% aluminum body and reinforced mounting brackets, CSF radiators can withstand even the harshest conditions. Built-in stone guards protect against debris, while the matte black finish provides a sleek, OEM+ look behind the grille.
Key Features of CSF 8321 Radiator
- Sold individually — two auxiliary radiators are used in all applications.
- Multi-fit design for both left and right sides.
- High-performance 42mm two-row core with CSF’s exclusive B-Tube technology.
- Ultra-efficient 5mm multi-louvered fins for maximum surface contact.
- Increased tank volume and core size.
- 100% TIG-welded aluminum construction.
- OEM-style quick-connect inlet/outlet.
- True "drop-in fit" with no modifications needed.
- Includes removable stone guard.
- Individually tested for pressure and leaks.
- Ideal for professional racing, street performance, or OEM replacement.
- Matte black finish for a clean OEM+ appearance.
- Two-year limited warranty.
Compatibility with BMW Models
- 2021+ BMW G80 M3 (incl. Competition & CS) – 6MT & ZF8 Auto
- 2021+ BMW G82/G83 M4 (incl. Competition, CS, & CSL) – 6MT & ZF8 Auto
- 2022+ BMW G81 M3 (incl. Competition) – 6MT & ZF8 Auto
- 2022+ BMW G87 M2 (incl. Competition) – 6MT & ZF8 Auto
Part Number for BMW S58 Engine Radiator:
- OEM: 17 11 8 095 285
BMW S58 Engine Cooling
For S58 engines often exceeding 1000 horsepower, standard radiators become a weak point under extreme conditions, leading to overheating and limp mode. With CSF’s new radiators, this is no longer an issue. The cooling system ensures stable engine performance, even under maximum load.
This new product is an excellent choice for track days, motorsports, or drivers seeking maximum reliability and performance from their G8X.
Order from ATOMIC-SHOP!
CSF radiators for BMW G8X M3/M4/M2 are now available at ATOMIC-SHOP. Our experts are happy to help you select the perfect model for your car and racing goals.
You can already buy a radiator on our website!
