Extreme PSI :: Cooling :: Radiators :: Mishimoto X-Line Performance Aluminum Race Radiator: Subaru WRX 2008-14 & STI 2008-15 *SALE*

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Mishimoto X-Line Performance Aluminum Race Radiator: Subaru WRX 2008-14 & STI 2008-15 *SALE* #25209

Mishimoto X-Line Performance Aluminum Race Radiator: Subaru WRX 2008-14 & STI 2008-15 *SALE* #25209

Mishimoto X-Line Performance Aluminum Race Radiator: Subaru WRX 2008-14 & STI 2008-15 *SALE*
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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. All Mishimoto radiators come with a high pressure 1.3 bar Mishimoto radiator cap and a great warranty including accident protection.

  • Premium radiator has 3-row (2" thick) core for improved strength and reliability.
  • 16% thinner-than-stock tubes allow for more surface contact, increasing cooling efficiency.
  • 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
  • Mishimoto Lifetime Warranty

Overall Size
28" x 21.8" x 2.5"

Core Size
13.39" x 27.09"


Core Thickness

Tank Wall Thickness

Fill Neck

Fill Neck Thickness

Drain Plug Thread Size
(M16) .06"

Drain Plug Thread Length



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

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, please contact us.


Engine Codes

Chassis Codes

Also Fits
08–15 STI
08–14 WRX
11 STI Limited
11 Forester XT Touring
10+ WRX Limited
10+ WRX Premium
10+ Forester XT Premium
10 STI Special Edition
09–10 Impreza 2.5 GT
09–10 Forester XT Limited
09 Forester XT
08 Outback 2.5 XT
08 Legacy GT
07–09 Outback XT Limited
07–09 Legacy GT Limited
06–09 Legacy GT Spec.B
06 Outback XT
05–06 Legacy
05 Outback

This item is for Manual Transmission vehicles. For automatic applications, please purchase optional Mishimoto transmission cooler.

On 2015 STI models, there will be tight clearance between the overflow bottle and air pump.

Use small fitting for:
08-09 WRX
08–15 STI

Use large fitting for:
05-09 Legacy GT
06-09 Legacy GT SPEC-B
05-09 Outback XT
09+ Forester XT
10+ Impreza WRX

Ships in 24 hours
Retail price: $440.00
Our price:
Want this item shipped on June 8? Order within the next 59 hrs 41 mins.

Proposition 65 requires businesses to provide warnings to Californians about significant exposures to chemicals that cause cancer, birth defects or other reproductive harm.

Prop65 WARNING: Cancer and Reproductive Harm. (www.p65warnings.ca.gov)


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