Mishimoto 08-09 Subaru WRX/STi Manual Aluminum Radiator

SKU: MISMMRAD-STI-08

Radiators

MM Radiators - Alum...

Mishimoto

Mishimoto 08-09 Subaru WRX/STi Manual Aluminum Radiator

SKU: MISMMRAD-STI-08

Radiators

MM Radiators - Alum...

Sale ends in Calculating... Wed 14 Oct, 11:05 am AEST

IN STOCK! Est Ship 3-5 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.

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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 and 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 competitive use. -- Backed by the Mishimoto Lifetime Warranty, including accident protection, this radiator is built to keep your Subaru running strong for years to come.

Product Overview

2008-2014 Subaru Impreza WRX 2.5 Liter TY758, 2008-2014 Subaru Impreza WRX 2.5 Liter TY758, 2008-2014 Subaru Impreza WRX 2.5 Liter TY758, 2008-2014 Subaru Impreza WRX 2.5 Liter TY758, 2008-2014 Subaru Impreza WRX 2.5 Liter TY758, 2008-2014 Subaru Impreza WRX 2.5 Liter TY758, 2008-2014 Subaru Impreza WRX 2.5 Liter TY758, 2010-2014 Subaru Impreza WRX Limited 2.5 Liter TY758, 2010-2014 Subaru Impreza WRX Limited 2.5 Liter TY758, 2010-2014 Subaru Impreza WRX Limited 2.5 Liter TY758, 2010-2014 Subaru Impreza WRX Limited 2.5 Liter TY758, 2010-2014 Subaru Impreza WRX Limited 2.5 Liter TY758, 2009-2014 Subaru Impreza WRX Premium 2.5 Liter TY758, 2009-2014 Subaru Impreza WRX Premium 2.5 Liter TY758, 2009-2014 Subaru Impreza WRX Premium 2.5 Liter TY758, 2009-2014 Subaru Impreza WRX Premium 2.5 Liter TY758, 2009-2014 Subaru Impreza WRX Premium 2.5 Liter TY758, 2009-2014 Subaru Impreza WRX Premium 2.5 Liter TY758, 2008-2014 Subaru Impreza WRX STI 2.5 Liter TY856, 2008-2014 Subaru Impreza WRX STI 2.5 Liter TY856, 2008-2014 Subaru Impreza WRX STI 2.5 Liter TY856, 2008-2014 Subaru Impreza WRX STI 2.5 Liter TY856, 2008-2014 Subaru Impreza WRX STI 2.5 Liter TY856, 2008-2014 Subaru Impreza WRX STI 2.5 Liter TY856, 2008-2014 Subaru Impreza WRX STI 2.5 Liter TY856, 2011-2014 Subaru Impreza WRX STI Limited 2.5 Liter TY856, 2011-2014 Subaru Impreza WRX STI Limited 2.5 Liter TY856, 2011-2014 Subaru Impreza WRX STI Limited 2.5 Liter TY856, 2011-2014 Subaru Impreza WRX STI Limited 2.5 Liter TY856, 2010 Subaru Impreza WRX STI Special Edition 2.5 Liter TY856, 2005-2006 Subaru Legacy GT 2.5 Liter TY757, 2005-2006 Subaru Legacy GT 2.5 Liter TY757, 2005 Subaru Legacy GT Limited 2.5 Liter TY757, 2007 Subaru Legacy GT Limited 2.5 Liter TY757, 2005 Subaru Legacy GT Limited 2.5 Liter TY757, 2007 Subaru Legacy GT Limited 2.5 Liter TY757, 2008-2009 Subaru Legacy GT Limited 2.5 Liter TY758, 2008-2009 Subaru Legacy GT Limited 2.5 Liter TY758 ...See Application Guide for Additional Fitments

Features and Benefits

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

Product Details

Alternate Part Number:	MMRAD-STI-08
Description:	Mishimoto Subaru Impreza WRX/STI Performance Aluminum Radiator
Dimensions:	28" x 21.8" x 2.15"
Install Difficulty:	3
Installation Difficulty:	3
Material:	Aluminum
Part Number:	misMMRAD-STI-08
Prop 65 - Short Label:	WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 Y/N:	Y
SellingPoint01:	Direct fit for the 2008-2019 Subaru WRX/STI
SellingPoint02:	Full aluminum construction including durable, TIG-welded end tanks
SellingPoint03:	Features a two-row, 1.65-in thick, efficient brazed aluminum core
SellingPoint04:	Increased fluid capacity and optimal heat dissipation
SellingPoint05:	Provides efficient temperature reduction for use on the street, track, rallycross, or autocross course
SellingPoint06:	Includes 1.3 Bar High-Pressure Radiator Cap which effectively raises the boiling point of engine coolant, providing a safer and more efficient system
SellingPoint07:	Includes Magnetic Drain Plug to capture any metallic debris/fragments in your cooling system
SellingPoint08:	Mishimoto Lifetime Warranty
SellingPoint09:	N/A
SellingPoint10:	N/A
SellingPoint11:	N/A
SellingPoint12:	N/A
SellingPoint13:	N/A
SellingPoint14:	N/A
SellingPoint15:	N/A
Size:	28in x 21.8in x 2.15in
TechSpec Applications:	2008-2014 Subaru WRX--2008-2019 Subaru STI--2009-2013 Subaru Forester XT--2005-2009 Subaru Outback XT--2005-2009 Subaru Legacy GT
TechSpec Chassis Codes:	GE--GH
TechSpec Core Height (in):	13.39
TechSpec Core Length (in):	27.08
TechSpec Core Thickness (in):	1.65
TechSpec DPI:	13091/13093
TechSpec Drain Plug Thread Size:	M12 x 1.5
TechSpec Engine Codes:	EJ255--EJ257
TechSpec Fluid Capacity (gal):	2.21
TechSpec Includes:	Mishimoto Radiator--Mishimoto Radiator Cap--Overflow Nipples - 2--Magnetic Drain Plug--Mishimoto Lifetime Warranty
TechSpec Inlet (in):	1.54
TechSpec Material:	N/A
TechSpec Note:	This item is for Manual Transmission vehicles. For automatic applications, please purchase optional Mishimoto Universal Transmission Cooler Kit.----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 M
TechSpec Outlet (in):	1.54
TechSpec Overall Height (in):	21.8
TechSpec Overall Length (in):	28
TechSpec Overall Width (ins):	2.15
TechSpec Rows:	2

Application Summary

Part Type

Radiator

Data: v4.2 - Upd: 2026-10-13 14:43:15

Features

Features a two-row, 1.65 thick brazed aluminum core
Full aluminum construction features durable, TIG-welded end tanks
Increased coolant capacity directly results in improved cooling efficiency

Specifications

Product Attributes - Brand: Mishimoto
Product Attributes - Manufacturer's Part Number: MMRAD-STI-08
Product Attributes - Part Type: Radiators
Product Attributes - Product Line: Mishimoto Performance Radiators
Product Attributes - UPC: 748354798852
Product Attributes - Radiator Material: Aluminum
Product Attributes - Radiator Style: Downflow
Product Attributes - Transmission Cooler: No
Product Attributes - Inlet Location: Center driver side
Product Attributes - Outlet Location: Lower driver side
Product Attributes - Overall Width (in.): 28.00 in.
Product Attributes - Overall Height (in.): 21.80 in.
Product Attributes - Overall Thickness (in.): 2.15 in.
Product Attributes - Row Quantity: 2
Product Attributes - Radiator Finish: Natural
Product Attributes - Core Width (in.): 27.08 in.
Product Attributes - Core Height (in.): 13.39 in.
Product Attributes - Core Thickness (in.): 1.65 in.
Product Attributes - Radiator Inlet Size: 1.540 in.
Product Attributes - Radiator Outlet Size: 1.540 in.
Product Attributes - Trans Cooler Adapter Fittings Included: No
Product Attributes - Fan Included: No
Product Attributes - Radiator Cap Included: Yes
Product Attributes - Quantity: Sold individually.

Reference Information

Brand Name/s	Mishimoto
StreetFX SKU	misMMRAD-STI-08
SFX Item ID	4051406
Supplier Item Code	4051406
Manufacturer SKU	MMRAD-STI-08
Manufacturer UPC	748354798852
Alternative References	mio-mmrad-sti-08, MIMMMRAD-STI-08