Koyo is Japan's largest aftermarket radiator manufacturer. The Koyo radiator is produced from aircraft quality aluminum.
The endtanks are welded on for superior durability. The core is twice as thick as the factory radiator giving 30% more cooling than factory. Fully polished to a mirror finish.
Great for cars seeing moderate to high track use, or high horse power, high boost applications, and cars seeing aggressive driving in high temperature climates.
Custom built OEM fit; all Koyo Radiator cores and tanks are specifically designed and built for each application. No universal fit parts are used. This helps to ensure a proper fit, just like OEM.
The 04 - 07 WRX & STI Radiator requires the use of a Koyo Radiator cap which is sold seperately. The OEM radiator cap will not fit.
These radiators do not have a cap on the radiator itself. If your radiator has all ready been replaced with the up-dated factory radiator that has a cap on it, you will need the 04-07 WRX/STI Radiator.
