The Koyo radiator is a great option for anyone who is looking to add to the cooling ability of their car. This is a fully welded design to eliminate the common leakage seen by the stock radiators at the upper and lower tanks where they are crimped together. The core is also about twice as thick as stock. This will allow you to not only have more coolant in your cooling system, but the better fin design will help keep your car running cool.
* Designed for use on manual transmission cars only. If used on cars with automatic transmission, an external transmission cooler will need to be adapted.
Fitment:
Subaru WRX - 2003-2007
Subaru STI - 2004-2007