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Mishimoto X-Line Performance Aluminum Radiator for WRX 2008-2014 / STI 2008-2015

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Product Description

Material Aluminum

This item is for Manual Transmission vehicles. For automatic applications, please purchase optional Mishimoto Universal Transmission Cooler Kit.


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.

It is the installer's responsibility to check all thermostat plugs, NPT plugs, line fittings, and other connections to assure they are fully tightened before operating the vehicle. Mishimoto recommends that you check all connections at regular intervals, especially during the first few miles after installation. For additional technical information, contact sales@mishimoto.com.

Chassis Codes

Engine Codes

2008-2014 Subaru WRX
2008-2014 Subaru WRX STI

Overall Height 28"

DPI 13091/13093

Drain Plug Length 0.047"

Drain Plug Thread Size (M12) x 1.5

Overall Length 21.8"

Fill Neck Thickness 0.12"

Tank Wall Thickness 0.08"

Outlet 1.54"

Rows 3

Inlet 1.54"

Dual Pass False

Purchase Includes
Mishimoto Radiator 
Mishimoto Radiator Cap
Overflow Nipples - 2
Magnetic Drain Plug 

Overall Width 2.5"

Core Length 13.39"

Core Height 27.09"

Core Size 13.39" x 27.09"

Core Thickness 2"

Fill Neck 1.22"

The Mishimoto X-Line performance aluminum radiator for the 2008–2014 Subaru WRX and 2008–2015 STI is designed with a larger 3-row core to maximize cooling efficiency, boost engine functions, and most importantly protect your car from overheating. It is the ideal upgrade to the stock Subaru radiator whether you drive your vehicle daily or take it for track runs. The Mishimoto aluminum WRX and STI radiator features a lightweight triple core, 100% brazed aluminum, and polished end tanks, enhancing the overall performance of your engine. Every Mishimoto aluminum radiator is a direct stock fit making installation effortless with no cutting or modification required.


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