$895.00
Untd. Performance Auxiliary Cooling Radiator for BMW G80/G82 M3/M4 (2021+). All-aluminum design, enhanced cooling efficiency, and track-ready thermal stability for high-boost S58 engines
Here’s a full product description for the Untd. Performance Auxiliary Cooling Radiator – BMW S58 M3/M4 G80 G82 (2021+), written to match your existing product style and brand voice:
Enhance the cooling system of your BMW S58-powered M3 and M4 with the Untd. Performance Auxiliary Cooling Radiator, engineered for the G80/G82 platform (2021+). Under aggressive driving, track conditions, or high-boost tuning, the factory auxiliary radiators can become overwhelmed—leading to elevated coolant temps, reduced performance, and increased heat soak.
This upgraded auxiliary radiator delivers significantly improved heat dissipation and coolant stability, ensuring your S58 maintains consistent performance during demanding street, track, and motorsport use. Designed as a direct-performance replacement, it provides the additional thermal overhead required for tuned and boosted S58 engines without compromising fitment.
Key Features
High-Efficiency All-Aluminum Construction
Built from full aluminum with TIG-welded end tanks for superior durability, strength, and heat-transfer efficiency compared to the OEM plastic components.
Improved Cooling Capacity
Optimized core design enhances coolant flow and heat dissipation, reducing temperature spikes during high-load driving, extended pulls, and track sessions.
Perfect for Tuned & High-Boost S58 Builds
Supports Stage 2, Stage 3, and hybrid-turbo setups where increased thermal demands can overwhelm stock cooling components.
Enhanced Reliability Under Extreme Conditions
Reinforced welded construction eliminates cracking or expansion issues common with factory plastic tanks—ideal for motorsport or high-performance street applications.
Direct Bolt-On Fitment
Designed to integrate seamlessly with OEM mounting points, connectors, and factory shrouding. No modifications required.
Compatibility – BMW S58 (G80/G82 2021+)
