SKU: CSF7042O
MPN: 7042O
The Radiator Subaru STI Impreza w/Built-in OC from CSF COOLING (model 7042O) is a high-capacity aluminum radiator engineered for 2008–2014 Subaru Impreza and STI models seeking improved thermal management and integrated oil cooling. This dual-function unit eliminates the need for separate cooling components, making it ideal for street-driven performance enthusiasts, tuned builds, and owners who demand efficient heat dissipation without compromising engine bay space. Whether you're managing stock boost levels or running elevated power output, this integrated solution simplifies cooling system upgrades while maintaining factory fitment.
Built from lightweight aluminum with a polished finish, the radiator features a single-pass design with top center inlet and driver-side outlet orientation, optimizing coolant flow dynamics and reducing turbulence for consistent temperature control. The integrated oil cooler—a critical feature on turbocharged Subaru platforms—maintains transmission and engine oil temperatures under sustained load, preventing thermal degradation and extending component life during aggressive driving or track use. Measuring 27.688 inches wide by 2.375 inches deep, the compact profile integrates seamlessly into the OEM mounting location, while the robust aluminum construction resists corrosion and withstands high-pressure cooling circuits typical of modern performance applications.
This radiator best serves owners of 2008–2014 Subaru Impreza and STI variants who are upgrading cooling capacity after engine modifications, tuning, or simply seeking factory-replacement reliability with enhanced thermal performance. Installation is straightforward for models originally equipped with compatible cooling systems; the OEM inlet and outlet positioning ensures direct bolt-in compatibility without custom piping. A 35.42 lb unit, it maintains the original weight footprint while delivering superior cooling efficiency—making it an essential upgrade for anyone serious about sustained performance driving or daily turbocharged ownership.
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