✅ Vehicle Fitment
Designed for manual transmission applications:
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Subaru WRX (MT)
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Subaru WRX STI (MT)
⚠ Manual transmission models only. Always verify engine and trim before ordering.
We are proud to introduce the new Megan high performance aluminum radiator. Anytime an individual introduces their car to a /drifting environment, the temperature of the vehicles engine will skyrocket. One common and effective method of reducing engine temperature is to employ an aluminum radiator.
Why Upgrade Your Subaru Radiator?
Factory radiators can struggle with:
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Sustained boost
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Track sessions
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Hot climates
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Plastic end tank fatigue
A full aluminum radiator increases coolant capacity and eliminates common failure points.
This is a cost effective upgrade which can ultimately save an engine during competition or spirited driving. Often times, a temperature drop of twenty degrees or more will be noticed when using an aluminum radiator. Also included is a 1.1 BAR radiator cap.
Key Features
🧊 T-6061 Aluminum Construction
Improved heat dissipation and durability.
🔥 50mm Thick Dual-Core Design
Greater coolant volume and improved thermal efficiency.
🛠 TIG-Welded End Tanks
Stronger than OEM crimped plastic tanks.
⚙ Direct Bolt-On Fit (MT Only)
Engineered for factory mounting locations.
Color: Aluminum Silver; Surface Finish: Natural; Style: Direct Bolt-On
Construction Design: Single Core 2-Row. Light Weight direct bolt-on fitment or Replacement;
Compatible / Replacement For 2008-2014 Impreza WRX & WRX STI Trim; For 2013-2014 WRX; For 2013-2014 WRX STI; Fits Manual Transmission ONLY
Megan MR-RT-SI08 Radiator WRX STI Performance Benefits
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Lower operating temperatures
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Improved cooling under boost
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Better consistency during track or spirited driving
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Increased reliability for modified EJ engines
If you’re tuned, tracking, or just drive aggressively, cooling upgrades are cheap insurance.
Installation Notes
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Manual transmission only.
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Inspect hoses and thermostat during install.
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Properly bleed Subaru cooling system (air pockets are common).
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Use recommended Subaru coolant mix.
Boost first. Cooling firster.
Improves cooling efficiency by 35 – 45% temp.
Aluminum radiators mark a modern advancement in cooling. Not only does the material dissipate heat at close to double the rate compared to brass, but also reduced the overall weight of the vehicle and provides a stronger and more durable core and tube design




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