Koyo Aluminum Radiator

The Koyo Aluminum Radiator is a direct drop-in replacement for the factory radiator - ideal for replacing the factory radiator for street driven and track driven S2000.

The Koyo radiator using a thicker than factory vertical single pass core with factory location inlet and outlet connections allowing easy installation to factory radiator hoses. It is the only drop-in style radiator made that does not require trimming or modification to the fans, fan shrouds, or other components for installation. The radiator features sculpted water tanks (see detailed photo) which allows the radiator to easily fit under the factory core support, mounting bosses for factory fan installation, mounting pins for factory mount locations, billet aluminum drain and bleeder fittings, as well as high quality TIG welded construction.

ScienceofSpeed highly recommends this radiator against other less expensive overseas manufactured radiators which in our experience do not fit as well, use a poor quality core, and require modification to install.

Fits 2000-05 and 2006-09 S2000 (includes sensor adapter for 2006-09 S2000).