Moroso has introduced Part No. 63871, a fabricated aluminum Coolant Expansion Tank for Subaru Impreza, WRX/STI ’08 & up. This tank is a direct bolt-in replacement for the stock plastic tank.
The tank is fabricated from aluminum for strength, the factory plastic tanks fail, turn yellow after repeated high heat situations. Features a billet aluminum radiator neck that accepts the included billet aluminum cap. Can be polished, chromed, painted, powder coated or left as is for a race look.