Overflow & Expansion Tanks

IAG Performance carries Coolant Overflow and Expansion Tanks for your 2002–2023 Subaru WRX, STI, Legacy GT, Forester XT, and BRZ. Whether you’re maintaining or upgrading your Subaru cooling system, we offer a wide selection of Subaru coolant overflow tanks, aluminum expansion tanks, fabricated coolant reservoirs, cylindrical expansion tanks, and universal coolant tanks designed for EJ and FA engines. Built to improve cooling system reliability, manage heat more efficiently, and withstand higher temperatures in performance applications, our Subaru coolant tanks are ideal for both daily-driven vehicles and modified builds.

Here are just a few of the brands we carry-
IAG Performance, Mishimoto, Moroso, Perrin Performance, Weapon R, and more.