Cobb 08-14 Subaru WRX/STI Coolant Overflow Tank

COBB is well-known for making performance parts for Subaru vehicles, and this coolant overflow tank is a great example of their work. If you're working on your 2008-2014 Subaru WRX or STI, this tank is designed to replace the stock plastic unit, helping to keep your cooling system running smoothly. It's a solid option for anyone looking to upgrade or replace a worn-out factory tank.

This overflow tank is constructed from aluminum, which is a step up from the original plastic part. Aluminum is lighter and generally more durable than plastic, offering a more robust solution for managing your coolant. The tank is designed to fit right into the factory location, making the installation process straightforward for most DIYers. Having a well-built overflow tank is important because it holds excess coolant that expands when the engine gets hot, then draws it back in as it cools, preventing air from entering the system.