Mishimoto Subaru 02-07 WRX/ 04-14 STI Aluminum Coolant Expansion Tank - Black

Mishimoto is known for making well-built cooling components, and this aluminum coolant expansion tank is a great example for your Subaru WRX or STI. The factory plastic expansion tanks can become brittle over time due to constant heating and cooling cycles, leading to cracks and leaks. This Mishimoto tank offers a more durable solution, constructed from fully welded aluminum to handle those temperature swings much better.

This tank also gives you a 50% increase in coolant capacity over the stock unit, which can help keep your engine running cooler, especially under demanding conditions. It features leak-free, barbed fittings for secure hose connections and comes in a sleek black anodized finish that really cleans up the look of your engine bay. It's designed to match their performance aluminum radiators, making it a solid choice if you're upgrading your cooling system.

If you're looking to replace a failing stock tank or just want a more robust and stylish upgrade for your Subaru's cooling system, this Mishimoto expansion tank is a popular choice. It's designed for a direct fit on the specified WRX and STI models.