Whether you're carving through back roads in your WRX or pushing your STI to the limit on track day, maintaining optimal coolant temperatures is essential to protecting your EJ engine. The factory radiator's plastic end tanks and limited cooling capacity can quickly become a weak link, especially under the high demands of spirited driving or hot summer commutes. A failure in the cooling system can lead to overheating, head gasket issues, and costly repairs that cut your driving adventures short. The Mishimoto Performance Aluminum Radiator for the 2008–2014 Subaru WRX and 2008–2021 Subaru STI is engineered to be the ultimate safeguard for your engine, delivering improved cooling efficiency and durability over stock. -- Built with a lightweight, dual-core design and 100% brazed aluminum construction, this radiator maximizes heat dissipation and withstands higher pressures to keep your engine performing at its best. The TIG-welded, polished end tanks add strength and a premium finish, while the direct-fit design ensures a straightforward installation with no cutting or modification required. The included high-pressure 1.3 bar radiator cap raises the boiling point of your coolant for an extra margin of safety under heavy loads, and a second radiator cap is included for use on the expansion tank. With up to a 30% increase in cooling efficiency over the factory unit, this upgrade is ideal for daily driving, spirited runs, or competitive use. -- Backed by the Mishimoto Lifetime Warranty, including accident protection, this radiator is built to keep your Subaru running strong for years to come.
Aluminum radiator engineered for efficient heat dissipation and optimal engine cooling. Precision-fit design ensures easy installation, corrosion resistance, and reliable performance across varied driving conditions.
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Increased coolant capacity directly results in improved cooling efficiency
Full aluminum construction features durable, TIG-welded end tanks
Features a two-row, 1.65 thick brazed aluminum core
The Mishimoto Aluminum Radiator for Subaru WRX and STI models is designed to enhance your vehicle's cooling system, providing reliable performance under demanding driving conditions. Constructed with full TIG-welded, polished aluminum end tanks and a dual-core, 1.65-inch thick brazed aluminum design, this radiator offers superior heat dissipation compared to stock units. Its lightweight yet robust construction ensures increased coolant capacity, which directly contributes to improved engine cooling, especially during spirited driving or hot weather. The direct-fit design guarantees a straightforward installation without the need for modifications, making it an ideal upgrade for enthusiasts seeking both performance and reliability.
The radiator features a high-pressure 1.3 bar radiator cap that raises the coolant boiling point, offering an extra margin of safety during high load scenarios. Additionally, a second radiator cap is included for use on the expansion tank, providing flexibility and ensuring optimal system pressure regulation. Upgrading to this radiator can result in up to a 30% increase in cooling efficiency over the factory component, helping to prevent overheating, head gasket issues, and other heat-related engine problems. Its corrosion-resistant aluminum construction ensures long-lasting durability across a variety of driving conditions, from daily commuting to competitive racing.
Backed by Mishimoto's lifetime warranty, this radiator is a dependable choice for Subaru owners who demand high performance and peace of mind. Whether you are replacing an aging factory radiator or preparing your vehicle for more aggressive use, this component is engineered to keep your EJ engine protected and running at its best. The combination of high-quality materials, precision fitment, and enhanced cooling capacity makes it a valuable upgrade for any Subaru WRX or STI enthusiast.
Features:
Constructed with lightweight, high-strength aluminum for durability and heat dissipation
Full TIG-welded, polished aluminum end tanks for strength and corrosion resistance
