Mishimoto

Mishimoto 08+ Subaru WRX/STi X-LINE (Thicker Core) Aluminum Radiator

SKU MMRAD-STI-08X

MPN misMMRAD-STI-08X

$449.95 · In stock

Mishimoto 08+ Subaru WRX/STi X-LINE (Thicker Core) Aluminum Radiator

Whether you're logging miles on your daily commute or chasing lap times at the track, keeping your Subaru's flat-four cool is key to reliability and performance. The factory radiator's limited capacity can quickly become a bottleneck under demanding conditions, putting your engine at risk of overheating and costly damage. The Mishimoto X-Line Performance Aluminum Radiator for the 2008–2014 Subaru WRX and 2008–2021 Subaru STI is designed to be the ultimate solution, offering maximum cooling efficiency and durability for any driving environment. -- Engineered with a larger triple-row core, this radiator delivers significantly improved heat dissipation to keep coolant temperatures in check, even under extreme loads. Its 100% brazed aluminum construction and TIG-welded polished end tanks provide superior strength and longevity compared to the stock unit, while the lightweight design helps maintain vehicle balance and performance. The direct OEM fit ensures an easy, no-modification installation, so you can spend less time in the garage and more time enjoying your Subaru. -- Every Mishimoto X-Line Performance Radiator includes a high-pressure 1.3 bar radiator cap to raise the boiling point of your coolant, offering additional protection against overheating. Additionally, a second radiator cap is included for use on the expansion tank. Backed by the Mishimoto Lifetime Warranty with accident protection, this radiator is built to keep your WRX or STI running cool and strong for years to come.

Confirmed vehicle fitment
YearsMakeModelSubmodelDrive
2005SubaruLegacyGT Limited—
2009–2014SubaruImprezaWRX Premium—
2011–2014SubaruImprezaWRX STI Limited—
2010SubaruImprezaWRX STI Special Edition—
2006–2009SubaruLegacyGT spec.B—
2008–2014SubaruImprezaWRX STI—
2005–2006SubaruLegacyGT—
2010–2014SubaruImprezaWRX Limited—
2016SubaruWRX STISeries.HyperBlue—
2009SubaruForesterXT—
2015–2021SubaruWRX STIBase—
2019SubaruWRX STIS209—
2005–2006SubaruOutbackXT—
2008–2014SubaruImprezaWRX—
2009–2010SubaruForesterXT Limited—
2011–2013SubaruForesterXT Touring—
2015SubaruWRX STILaunch Edition—
2015–2021SubaruWRX STILimited—
2007–2009SubaruLegacyGT Limited—
2005–2009SubaruOutbackXT Limited—
2018SubaruWRX STIType RA—
Specifications
CategoryCooling
Sub-CategoryRadiators
UPC748354803488
CARB ApprovedYes
Prop 65 WarningY
Weight16.2 lb
Dimensions (L×W×H)31.7 × 23.3 × 6.9 in