- Description
- Shipping and Refund
The Wagner Tuning Radiator Upgrade Kit for the 2020+ Toyota GR Supra A90 delivers a major improvement in coolant capacity, heat rejection, and long-term reliability compared to the factory cooling system. As boost and power levels rise—especially with tuning, ethanol blends, or upgraded turbos—the Supra’s stock radiator struggles to keep engine temperatures under control. This results in heat-soak, reduced timing, lowered performance, and added stress on the B58 engine. Wagner’s upgrade kit solves this with a significantly more efficient, motorsport-grade cooling package.
Built around a high-performance, high-density aluminum radiator core, the Wagner system provides increased surface area, improved coolant flow, and superior heat dissipation. The enlarged core volume handles the additional thermal load produced by tuned engines, aggressive track sessions, and extended high-RPM driving. Even under extreme conditions, coolant temperatures remain stable, allowing the ECU to maintain optimal timing and power output.
Wagner utilizes advanced CAD and CFD modeling to optimize fin density, internal coolant routing, and external airflow. The result is a radiator that not only cools better but does so with minimal pressure drop. TIG-welded aluminum end tanks provide exceptional strength, resisting the expansion and fatigue issues commonly seen in plastic OEM end tanks over time.
This system integrates seamlessly with the Supra’s factory cooling layout. It is fully compatible with the OEM cooling fans, shrouding, sensors, and hoses. Wagner’s precision fitment ensures proper alignment and easy installation without the need for trimming or modification.
For drivers who push their Supra hard—daily spirited use, track days, road course events, roll racing, or high-boost setups—this radiator upgrade is one of the most effective ways to protect the B58 engine and ensure consistent, repeatable performance.
Key Features
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Direct fit for 2020+ Toyota GR Supra A90 (B58)
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High-performance aluminum radiator core
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Increased coolant capacity and heat rejection
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Significantly improved cooling efficiency vs. OEM
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TIG-welded aluminum end tanks for strength and longevity
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Minimizes heat-soak during repeated high-load pulls
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Supports tuned, hybrid turbo, and big turbo setups
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Ideal for ethanol and high-boost applications
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CAD/CFD optimized for balanced flow and minimal pressure drop
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Retains compatibility with OEM fans, sensors, and mounts
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Perfect for street, track, and competition environments
Ideal For
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Tuned Supras experiencing elevated coolant temps
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Track cars and road course builds
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Hybrid and big-turbo applications
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Drivers in hot climates or heavy-load conditions
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Anyone wanting better reliability and thermal control
Installation
Bolt-on installation using factory mounting points. No trimming or fabrication required. Coolant replacement and system bleeding are required after installation.
