PWR Performance Radiator 2008-14 WRX / 2008-2021 STI | Downflow Design | High-Efficiency Cooling Radiator
Overview
The PWR Performance Radiator for the 2008-2014 Subaru WRX and 2008-2021 Subaru WRX STI is a high-quality cooling solution designed to improve thermal management under demanding driving conditions. This radiator replaces the factory unit with a purpose-built downflow design that optimizes coolant flow and heat dissipation, making it ideal for enthusiasts who push their Subarus on the street, track, or during spirited driving. Whether you’re upgrading for reliability or performance, this radiator supports sustained engine temperatures for enhanced durability.
Engineered by PWR, a leader in motorsport cooling technology, this radiator features a single-pass core with a center inlet and a lower driver-side outlet, ensuring efficient coolant circulation. The 1.5-inch inlet and outlet sizes are optimized for high flow rates, reducing the risk of overheating during extended high-load scenarios. PWR’s commitment to precision manufacturing and material quality ensures this radiator meets the rigorous demands of Subaru performance applications.
For Subaru WRX and STI owners, maintaining optimal engine temperature is critical to preserving power output and preventing heat soak, especially when running modified setups or during track use. This radiator’s downflow configuration enhances cooling efficiency without compromising fitment or requiring extensive modifications, making it a practical upgrade that supports both daily driving and performance ambitions.
Features & Specifications
This PWR Performance Radiator is engineered specifically for the 2008-14 WRX and 2008-21 STI platforms and features a downflow, single-pass design. Constructed from high-quality materials, it delivers superior cooling capacity and reliability for Subaru enthusiasts seeking to improve engine thermal management and maintain consistent performance.
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Brand: PWR
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Product: Performance Radiator 2008-14 WRX / 2008-2021 STI
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Part Number: CR-UC-RPR002B
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Fitment: 2008-14 Subaru WRX / 2008-21 Subaru WRX STI
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Material: Aluminum
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Finish: Raw aluminum
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Construction: Welded
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Origin: Australia
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Radiator Style: Downflow
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Number of Passes: Single
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Inlet Location: Center
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Inlet Size: 1.5 inches
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Outlet Location: Lower driver side
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Outlet Size: 1.5 inches
Key Benefits
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Cooling Efficiency: Downflow design promotes superior heat dissipation and coolant flow for consistent engine temperatures.
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Durability: High-quality aluminum construction and welded joints ensure long-lasting reliability under high stress.
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Fitment: Direct fit for 2008-14 WRX and 2008-21 STI models with no modifications required.
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Performance Support: Ideal for track and high-performance street use, reducing risk of heat soak during extended hard driving.
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OEM+ Quality: Precision engineering maintains factory mounting points and hose connections for seamless installation.
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Thermal Management: Helps protect turbocharged Subaru engines from overheating, preserving power and engine health.
What's Included
- 1× PWR Performance Radiator 2008-14 WRX / 2008-2021 STI
- Installation instructions
Installation & Compatibility
Installation of the PWR Performance Radiator is straightforward for those with basic mechanical skills and common hand tools. It is a direct bolt-on replacement for the specified WRX and STI models, requiring no modifications to the cooling system or chassis. Professional installation is recommended if you are unfamiliar with coolant system servicing or radiator replacement. Ensure the cooling system is properly bled and refilled with the correct coolant after installation. This radiator supports both stock and modified setups but does not eliminate the need for proper tuning and maintenance of your Subaru’s cooling system.
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Professional Installation: Recommended for best results
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Modifications Required: None
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Verify Compatibility: Confirm fitment for your specific model year and trim
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