The All-Aluminum Radiator features a built-in oil cooler to provide maximum cooling efficiency in the Subaru WRX/STI.

CSF Racing Radiator w/ Built-in Oil Cooler

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Radiator Specs:

• CAD/CAM designed using Unigraphics Software
• OE radial and deep drawn aluminum end tanks
• B-Tube Technology - stronger, most efficient tube in the world
• Wind tunnel tested for optimal radiator core cooling efficiency
• "Racing Style" aluminum drain plug
• Brazed in CAB furnace
• Military-grade special clad aluminum used for tubes, fins, header
• Plates and side brackets (JIS 3003 spec minimum)
• Privately owned factories with full "in-house" tool rooms
• CNC machined fittings
• "Master Class" TIG welding
• Individually leak tested
• Vibration cycle tested
• Thermal cycle tested
• Wind tunnel tested for optimal radiator core cooling efficiency
• Burst pressure and impulse cycle tested 10,000 times for strength
• Salt spray tested for corrosion protection
• 10-foot box "drop test" to ensure packaging protection
• 30 point fitment inspection on critical dimensions to ensure OE fitment with no modifications necessary
• Includes radiator cap
• Built-in oil cooler

CSF Racing Radiator w/ Built-in Oil Cooler

The CSF Racing Radiator features all-aluminum construction to provide you with long-lasting performance. The OEM radiator has been designed with a plastic upper tank that will eventually crack due to multiple heat cycles and pressure. The CSF unit is incredibly durable with master class TIG welding, and they have been thoroughly tested to provide you with one of the most effective radiators to cool your dedicated race car, rally car, or daily-driven street car.

This particular will come with the built-in oil cooler option and is a direct replacement for your factory radiator that will improve the cooling capacity in your Subaru.