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This Moroso coolant expansion tank is made specifically for 2008–2019 Subaru WRX and STi models, offering a direct-fit replacement for the factory overflow reservoir. It provides a tidy, durable mounting option that keeps coolant levels visible and helps manage thermal expansion, useful during street and track use where reliable coolant overflow containment matters.
Moroso 08-19 Subaru WRX/STi Coolant Expansion Tank
