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Koyo Aluminum Racing Radiator Manual Transmission - 08+ WRX/STI

Koyo aluminum racing radiators are designed to be direct factory replacement units. Koyo racing radiator features a much thicker core with a more efficient fin design that helps with flow and temperature drop over the surface. 

Koyo is Japans largest aftermarket radiator manufacturer, utilizing the latest aircraft quality aluminum and Heli-arc welded. Heli-arc soldering is the highest quality standard for enforcement along aluminum connections. 

Upper radiator hose may require trimming for proper clearance.

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