CSF, a trusted name in BMW cooling technologies, has launched its newest innovation for the G8X lineup M3/ M4/ M2: high-performance auxiliary radiators. These advanced components join the renowned Power Cooling Package, a favorite among automotive enthusiasts and motorsport teams worldwide.
Why Choose CSF Radiators Over OEM
CSF radiators deliver superior performance compared to standard OEM parts, offering:
- Exceptional Durability: Constructed from TIG-welded aluminum and larger than OEM plastic radiators for added strength.
- Enhanced Cooling Efficiency: Features a 42mm two-row core with CSF’s proprietary B-Tube technology and 5mm multi-louvered fins for optimal heat dissipation.
- Improved Temperature Control: Prevents heat soak, maintaining ideal operating temperatures even during aggressive driving for sustained performance.
| 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 |
Cooling System Components for the G8X S58 Engine
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
CSF Radiators: Built for BMW M3/ M4/ M2
CSF auxiliary radiators are designed to directly replace OEM parts, fitting seamlessly in stock locations with plug-and-play quick-connect fittings. You can opt to replace just one auxiliary radiator — the right for enhanced charge air cooling or the left for improved engine cooling.
CSF 8321 Auxiliary Radiator: Unmatched Performance for BMW G8X
Built with a robust 100% aluminum body and reinforced mounting points, the CSF 8321 auxiliary radiator is engineered to withstand the harshest conditions. Its integrated stone guards shield the radiator from debris, while the matte black finish complements the vehicle’s sleek design.
Key Features of the CSF 8321 Radiator
- Versatile Fit: Suitable for both left and right sides; sold individually.
- Premium Core Design: 42mm two-row high-performance core with proprietary B-Tube technology.
- Optimized Cooling: 5mm ultra-efficient multi-louvered fins ensure maximum surface contact.
- Durable Construction: Fully TIG-welded aluminum with increased tank volume and core size.
- Hassle-Free Installation: OEM-style quick-connect fittings and true drop-in fit with no modifications required.
- Additional Protection: Includes a removable stone guard.
- Reliability Guaranteed: Each unit undergoes individual pressure and leak testing.
- Aesthetics and Performance: Matte black finish for an OEM+ appearance.
- Warranty: Backed by a two-year limited warranty.
Compatibility
- 2021+ BMW G80 M3 (Competition & CS) – 6MT & ZF8 Auto
- 2021+ BMW G82/G83 M4 (Competition, CS, & CSL) – 6MT & ZF8 Auto
- 2022+ BMW G81 M3 Touring (Competition) – 6MT & ZF8 Auto
- 2022+ BMW G87 M2 (Competition) – 6MT & ZF8 Auto
OEM Part Number for BMW S58 Engine Radiator: 17 11 8 095 285
Upgrading BMW S58 Engine Cooling with CSF Radiators
For S58 engines that often produce over 1000 horsepower, OEM radiators can be a weak link under extreme conditions, leading to overheating and limp mode. CSF’s auxiliary radiators eliminate this issue, providing reliable cooling even at peak loads, making them an essential upgrade for track days, motorsports, or anyone looking to maximize their G8X’s performance.
Available at ATOMIC-SHOP
CSF radiators for BMW G8X M3/M4/M2 are now available at ATOMIC-SHOP. Contact our team for expert assistance in choosing the perfect radiator for your vehicle and performance needs.
You can already buy a radiator on our website!
