Specifications
Part Details:
The Mishimoto Performance Aluminum Triple-Core Radiator is designed to provide increased cooling capacity for the Subaru Impreza STI by significantly improving heat dissipation compared to the factory radiator. The triple-core design increases coolant volume and thermal efficiency, helping maintain stable engine temperatures under higher heat loads.
Constructed from durable aluminum and engineered with a high-efficiency triple-core cooling core, this radiator is built for applications where additional cooling headroom is required. It installs as a direct-fit replacement using factory mounting points and remains compatible with stock fans and shrouds.
Performance & Cooling Capacity
The triple-core design offers greater surface area and improved coolant flow compared to standard radiators. This allows heat to be removed more effectively from the cooling system, helping reduce temperature fluctuations during aggressive driving, warm climates, or sustained engine load.
Improved cooling consistency supports engine reliability and makes this radiator a strong option for performance-focused builds or vehicles that regularly operate under demanding conditions.
Design & Fitment
Designed as a direct OEM-style replacement, this radiator matches factory dimensions and mounting locations for proper alignment and secure installation. The aluminum construction also provides increased durability over aging factory radiators, making it suitable for long-term use in higher-heat environments.
Application & Compatibility
- Subaru Impreza STI (2008–2014)
Key Features
- Triple-core aluminum radiator construction
- Increased cooling capacity compared to OEM radiator
- Direct-fit replacement using factory mounting points
- Compatible with stock fans and shrouds
- Designed for stable cooling under higher thermal loads
All Mishimoto radiators come with a high pressure 1.3 bar Mishimoto radiator cap and, like all our aluminum radiators, this product comes with the unparalleled Mishimoto Lifetime Warranty.
Recommended Supporting Cooling Components
- Fans & Shrouds – help improve airflow through the radiator, especially during low-speed and stop-and-go driving.
- Cooling Hoses – ensure reliable coolant flow and are commonly replaced when upgrading radiators.
- Coolant Routing – supports efficient coolant circulation throughout the cooling system.
- Oil Coolers – complement radiator upgrades by helping manage oil temperatures under sustained load.
Learn more about Mishimoto cooling solutions and performance-focused radiator upgrades.
Shipping
Shipping Options:
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Delivery Times:
- In Stock: 3-7 Business Days
- Custom Orders: 2-6 Weeks, Please Email: [email protected] or Call: 727-565-9808 for Questions.
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Darren Rowe (verified owner) –
Engine bay is getting super cramped and heat soaked. Picked up this radiator and this thing is super thick! Coolant temps are under control now with this and a colder thermostat.