
The Mishimoto aluminum radiator for 2008–2014 Subaru WRX and 2008–2021 STI is a direct-fit performance replacement that improves cooling efficiency and durability over the factory unit. It uses a lightweight dual-core, 100% brazed aluminum construction with TIG-welded polished end tanks, increases coolant capacity and can improve cooling by up to 30%, and includes a 1.3 bar cap and a second cap for the expansion tank.
Mishimoto 08-09 Subaru WRX/STi Manual Aluminum Radiator