Bundle Only
Built for Boost. Designed for Durability.
Whether you’re daily driving or chasing lap times, heat is the enemy—and the stock radiator isn’t built for long-term abuse. The CSF High Performance Aluminum Radiator is a direct-fit solution for the 2008–2021 WRX and STI, designed to increase cooling efficiency and eliminate common failure points in the factory system.
This radiator features a robust 2-row, 42mm aluminum core and TIG-welded end tanks that ditch the factory plastic. It’s real performance cooling, tested and proven, and now available in your choice of Raw Aluminum or a stealthy Black Finish.
Key Features
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42mm Dual-Row High-Density Core
Increases cooling capacity and thermal efficiency over stock—perfect for modified or hard-driven cars. -
TIG-Welded Aluminum End Tanks
Full aluminum construction means no plastic tanks to crack, leak, or warp over time. -
Available in Two Finishes
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Raw Aluminum – Classic performance look
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Satin Black – Low-key, stealthy finish with corrosion resistance
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Drop-In Fitment
Uses factory fan shroud, hoses, and mounting points. No cutting or modification required. -
Tested to OE Standards
Pressure tested, vibration cycle tested, and thermal cycle tested to ensure performance and longevity.
What’s Included
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CSF Aluminum Radiator (Raw or Black Finish)
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Integrated drain plug
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Pre-installed mounting points
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Ready for OEM or aftermarket coolant systems
Fitment
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2008–2021 Subaru WRX
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2008–2021 Subaru STI
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Fully compatible with OEM cooling hardware