EJ25 GE GH GR GV metalmani plasticmani VASTI

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Mishimoto X-Line Radiator 2008-2014 WRX/2008-2022 STI

EJ25 GE GH GR GV metalmani plasticmani VASTI

e_code, b_code, mani_type

  • The Mishimoto X-Line performance aluminum radiator for the Subaru WRX and STI is designed with a larger 3 row core to maximize cooling efficiency, boost engine functions, and protect your car from overheating. It is the ideal upgrade from the stock Subaru radiator whether you drive your vehicle daily or take it for track runs. The Mishimoto X-Line aluminum radiator features a lightweight triple core, 100% brazed aluminum, and polished end tanks enhancing the overall performance of your engine. 

  • Premium radiator has 3-row core for improved strength and reliability.
  • 16% thinner-than-stock tubes allow for more surface contact, increasing cooling efficiency.
  • 2" core thickness; 2.5" overall thickness.
  • Greater density of rows for higher cooling capacity.
  • More contact points for additional heat transfer.
  • 3-row design creates more air turbulence, maximizing cooling efficiency.
  • Includes magnetic drain plug
  • Includes a high-pressure 1.3 bar Mishimoto radiator cap.
  • Lifetime warranty

    Note that this radiator is much THICKER than the stock one! You WILL have to adjust and/or customize to fit this radiator. Be prepared to trim radiator hoses (especially the upper hose), remove the air pump shield, and/or relocate or replace the coolant overflow tank as necessary to make room for this radiator. If you are not comfortable with modifying the engine bay setup in this way, we suggest the standard Mishimoto 2-row radiator. We will not accept returns because you couldn't figure out how to mount this oversized radiator in your engine bay.


    • Overall dimensions: 21.8" long x 28" high x 2.5" thick.
    • Core size: 13.39" x 27.09"
    • Core thickness: 2"

    All Mishimoto radiators come with a high pressure 1.3 bar Mishimoto radiator cap and a great warranty including accident protection.

    Note: This radiator is intended for manual transmission vehicles only. If you have an automatic transmission, you MUST use an auxiliary trans cooler to use this radiator. 

    Caution: The provided Mishimoto radiator cap should replace the stock cap located on the expansion tank. The stock cap attached to the radiator should be installed on the Mishimoto Performance Aluminum Radiator. The Mishimoto radiator cap is a two way valve, while the stock radiator cap is a single valve. Due to the difference in construction, the Mishimoto cap cannot be used on the radiator. If the Mishimoto cap is fit on the radiator, overheating may occur. Mishimoto recommends that you check all connections at regular intervals, especially during the first few miles after installation. For additional technical information, contact

    Two different hose nipple fittings are provided. Use small fitting for: 2008–2009 Subaru WRX, 2008–2021 Subaru STI. Use large fitting for: 2010–2014 Subaru WRX, 2005–2009 Subaru Legacy GT/Outback XT, 2009–2013 Subaru Forester XT.

    Fits all manual-transmission 2008-2014 Subaru WRX and 2008-2022 STI.


  • SKU#: 07738

    Shipping Weight: 30.0 lb

    Supplier: Mishimoto

    Category: Cooling System