Upgrade your Subaru’s cooling system with the IAG Performance AN-Style Thermostat Housing, engineered for enthusiasts who demand durability and precision. This premium thermostat housing replaces OEM rubber hoses with a robust billet aluminum design, ensuring reliable coolant flow and a secure, leak-free fit for your Subaru WRX, WRX STI, Forester XT, Legacy GT, or BRZ from 2002 to 2024.

Crafted from 6061-T6 billet aluminum, this housing features a flat 2-bolt OEM-style mounting flange and a -20 AN male threaded outlet, providing exceptional strength and heat resistance. Its sleek black anodized finish offers corrosion protection, making it ideal for high-performance or heavily modified Subaru builds. Precision machining guarantees optimal coolant circulation, supporting boosted engines and demanding driving conditions.

Perfect for Subaru owners upgrading to aftermarket AN fittings, this thermostat housing delivers superior reliability and longevity. Whether you’re building a track car or enhancing daily performance, trust this quality upgrade to keep your cooling system efficient. Shop Subaru cooling upgrades designed for performance and durability at Subimods today.