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Mishimoto Performance Aluminum Radiator, fits Subaru WRX 2008-2014/Subaru STI 2008-2021

Part # MMRAD-STI-08SKU MISMMRAD-STI-08

Set your vehicle above for a fit verdict. 27 vehicles listed below.

Specifications
BrandMishimoto
Part typeRadiator
PositionPrimary
Core FinishUncoated
Core Height13.39 in
Core Length27.08 in
Core MaterialAluminum
Core Row Quantity2
Core Thickness1.65 in
Down Flow Or Cross Flow TypeDown Flow
Drain Plug IncludedYes
Drain Plug Thread SizeM12 - 1.5
Fluid Capacity2.21 gal
Inlet Diameter1.54 in
Inlet LocationTop Left
Install Difficulty3
Outlet Diameter1.54 in
Outlet LocationBottom Left
Overall Height21.8 in
Overall Length28 in
Overall Width2.15 in
Radiator Cap IncludedYes
SellingPoint01Direct fit for the 2008-2014 Subaru WRX/2008-2021 STI
SellingPoint02Full aluminum construction features durable, TIG-welded end tanks
SellingPoint03Features a two-row, 1.65” thick brazed aluminum core
SellingPoint04Increased coolant capacity directly results in improved cooling efficiency
SellingPoint05Provides efficient temperature reduction for use on the street, track, rallycross, or autocross course
SellingPoint06Now includes two 1.3 bar high-pressure caps, raising the boiling point of engine coolant to provide a safer, more efficient system
SellingPoint07Two-way expansion tank cap and one-way radiator cap ensure proper flow and function of cooling system to avoid overheating
SellingPoint08Includes Magnetic Drain Plug to capture any metallic debris/fragments in your cooling system
SellingPoint09Mishimoto Lifetime Warranty
TechSpec Applications2008-2014 Subaru WRX--2008-2019 Subaru STI--2009-2013 Subaru Forester XT--2005-2009 Subaru Outback XT--2005-2009 Subaru Legacy GT
UPC / GTIN00748354798852
WarrantyLifetime Warranty
  • Full aluminum construction features durable, TIG-welded end tanks
  • Features a two-row, 1.65 thick brazed aluminum core
  • Increased coolant capacity directly results in improved cooling efficiency

Description

Whether you're carving through back roads in your WRX or pushing your STI to the limit on track day, maintaining optimal coolant temperatures is essential to protecting your EJ engine. The factory radiator's plastic end tanks and limited cooling capacity can quickly become a weak link, especially under the high demands of spirited driving or hot summer commutes. A failure in the cooling system can lead to overheating, head gasket issues, and costly repairs that cut your driving adventures short. The Mishimoto Performance Aluminum Radiator for the 2008–2014 Subaru WRX and 2008–2021 Subaru STI is engineered to be the ultimate safeguard for your engine, delivering improved cooling efficiency and durability over stock. -- Built with a lightweight, dual-core design and 100% brazed aluminum construction, this radiator maximizes heat dissipation an d withstands higher pressures to keep your engine performing at its best. The TIG-welded, polished end tanks add strength and a premium finish, while the direct-fit design ensures a straightforward installation with no cutting or modification required. The included high-pressure 1.3 bar radiator cap raises the boiling point of your coolant for an extra margin of safety under heavy loads, and a second radiator cap is included for use on the expansion tank. With up to a 30% increase in cooling efficiency over the factory unit, this upgrade is ideal for daily driving, spirited runs, or competitiv e use. -- Backed by the Mishimoto Lifetime Warranty, including accident protection, this radiator is built to keep your Subaru running strong for years to come.

Fits these vehicles 27

YearMakeModelSubmodel
2009SubaruForesterXT, XT Limited
2010SubaruForesterXT Limited, XT Sports
2011SubaruForesterXT Sports, XT Touring
2012SubaruForesterXT Limited, XT Sports, XT Touring
2013SubaruForesterXT Limited, XT Touring
2008SubaruImprezaWRX, WRX STI
2009SubaruImprezaWRX, WRX Premium, WRX STI
2010SubaruImprezaWRX, WRX GT, WRX Limited, WRX Premium, WRX SE, WRX STI, WRX STI Special Edition
2011 - 2014SubaruImprezaWRX, WRX Limited, WRX Premium, WRX STI, WRX STI Limited
2005SubaruLegacyGT, GT Limited
2006SubaruLegacyGT, GT spec.B
2007 - 2008SubaruLegacyGT, GT Limited, GT spec.B
2009SubaruLegacyGT Limited, GT spec.B
2005 - 2008SubaruOutbackXT, XT Limited
2009SubaruOutbackXT Limited
2012SubaruWRXBase, STI
2013SubaruWRXBase, Limited, STI
2014SubaruWRXBase, Limited, SE, STI
2013SubaruWRX STIBase, Sport-tech
2014SubaruWRX STIBase, Sport-tech, Tsurugi Edition
2015SubaruWRX STIBase, Launch Edition, Limited
2016SubaruWRX STIBase, Limited, Series.HyperBlue
2017SubaruWRX STIBase, Limited, Sport, Sport-tech
2018SubaruWRX STIBase, Limited, STI, Sport, Sport-tech, Type RA
2019SubaruWRX STIBase, Limited, S209, STI, Sport, Sport-tech
2020SubaruWRX STIBase, Kanrai Edition, Limited, STI, Sport, Sport-tech
2021SubaruWRX STIBase, Limited, STI, Sport, Sport-tech