Mishimoto · Radiator
Mishimoto Subaru WRX/STI Aluminium Radiator (2001-2007)
Includes taxes, duties, and fees globally.
Or 3 interest-free payments of £128.82
★★★★★ Verified
“Ordered at 9am, received at 9am the following day. A company that do as they say, and actually deliver in 24hrs.”
James, verified customer, Jan 2025
Check it fits before you buy
Send us your chassis code and we will confirm before you spend anything.
Ships today
In-stock parts ordered before 1pm are dispatched the same day. If your parts not in stock, we will email you with a lead time & alternatives.
We all get it wrong
You can order the wrong part sometimes. Whatever the issue, we put it right fast. Unsure? Email us and we will check the specs against your car.
We build these cars
Our team build and race in the motorsport and tuning scene, and our founder competes in pro drift in his own E46. We know our stuff.
Full details
Mishimoto Subaru WRX/STI Aluminium Radiator (2001-2007)
Key Features
- Large three-row aluminium core provides additional coolant capacity, substantial coolant surface contact, and optimal coolant temperatures even in the most demanding environments
- Full aluminium construction provides increased heat and pressure tolerance, improved heat dissipation, increased durability, and improved cooling efficiency · Manufactured with robust TIG-welded end tanks for improved strength and extended longevity
- Increased coolant capacity directly results in improved cooling efficiency
When properly maintained, the Subaru flat-four is well known for its substantial power and impressive reliability. Proper regulation of coolant temperature is key to extending the life of your EJ-powered Subaru. Highly modified turbocharger setups and aggressive driving can result in high temperatures, which increases wear on internal engine components. The X-Line Performance Aluminium Radiator is engineered specifically for the 2001-2007 Subaru WRX and STI and features a large three-row core and full aluminium construction. This design yields optimal temperatures even in the most demanding environments.
This radiator also features a 100% brazed aluminium core with TIG-welded end tanks for increased durability, longevity, and a substantial increase in coolant capacity. The large three-row core enhances surface contact, resulting in improved efficiency, improved heat transfer, and lower engine coolant temperatures for your Subaru. The Mishimoto Subaru WRX and STI radiator includes a high-pressure 1.3 bar radiator cap, which effectively raises the boiling point of coolant to create a safer and more efficient system. Additionally, a second radiator cap is included for use on the expansion tank. Included with this radiator is a Mishimoto magnetic drain plug that removes metal fragments circulating in the coolant system, thus further protecting your engine. Whether you are looking for a reliable stock replacement radiator or a heat exchanger efficient enough for track abuse, the Mishimoto Subaru WRX and STI X-Line Performance Aluminium Radiator is an ideal choice. As with all our products, this radiator is backed by the Mishimoto Lifetime Warranty.
More Information
| Overall Length (in) | 17.2 |
|---|---|
| Overall Height (in) | 28.4 |
| Overall Width (in) | 2.5 |
| Core Length (in) | 13.54 |
| Core Height (in) | 27.24 |
| Core Thickness (in) | 2 |
| Rows | 3 |
| Inlet (in) | 1.5 |
| Outlet (in) | 1.5 |
| Drain Plug Thread Size | M12 x 1.5 |
| DPI | 2703 |
| Applications | Saab 9-2X H4 (2.0L) 2005 Saab 9-2X H4 (2.5L) 2006 Subaru WRX H4 (2.0) 2002-2005 Subaru WRX H4 (2.5) 2006-2007 Subaru WRX STI H4 (2.5) 2004-2007 |
| Engine Codes | EJ205 EJ255 EJ257 |
| Chassis Codes | GD |
| Note |
This item is for Manual Transmission vehicles. For automatic applications, please purchase optional Mishimoto Universal Transmission Cooler Kit. |
Who you are buying from
You are buying from a drift team, not just a warehouse.
Our founder competes himself in his own drift E46. Our team build and race the same platforms you drive and work on, and our sponsored drivers chase championships on the same parts we sell worldwide. Choosing with CDMSport not only gets you tried and tested parts, but it helps us support up and coming motorsport talent through our sponsorship programs.
01
We have already broken it for you.
Our founder, a full team of sponsored drivers, and hundreds of other drivers worldwide are out competing on this stuff in drift and rally. When we tell you a part is good, the part is good. It has already been put to the test.
Verified customer
“After trying a few better known brands such as Tilton and Extreme, and never being super happy... Conor was able to recommend me the perfect clutch for my application... I havn't broken any drivetrain parts since I installed it.”
Connell O'Kane, 2JZ drift car, 27 Jul 2024
02
Tell us the car. We will spec it.
Chassis codes, spring rates, angle kit clearances, clutch ratings. Send us the car and what you want it to do. The answer comes from someone who has run that setup, not someone reading a product sheet.
Verified customer
“Conor is a top man very helpful and always replies to any questions you have about his products.”
Ryan, 12 Jan 2025
03
Ordered before 1pm, fitted this weekend.
In-stock parts ordered before 1pm are dispatched the same day. UK and Ireland typically arrive next morning, worldwide as quick as three days. Times do vary, but that can mean the part is on the car within a few days and she is back out blasting the roads by the weekend.
Verified customer
“Ordered at 9am received at 9am the following day! A company that do as they say, provide great parts at great prices and actually deliver in 24hrs.”
James, 14 Jan 2025
04
The price you see is the price you pay.
Duty and taxes are pre-paid, so there is no customs bill waiting at your door. What the checkout says is what it costs, wherever you are.
Verified customer
“CDM is a shop that does international shipping swiftly, with clear communication along the way. The part(s) also arrived unscathed, properly packaged, and as described.”
Brandon Somerville, 13 May 2025
Straight answers
The questions you were about to ask... answered.
How do I know it will fit my car?
Send us your chassis code or your reg in the chat and we will confirm before you spend anything. If you order and it turns out to be the wrong part, we swap it.
“Had a mix up with the item description (order wrong part) they was quick to email me and see what part I was meant to order and substituted it for no extra cost!”
Bradley Page, verified customer, 31 Jan 2025
When will it actually arrive?
In stock and ordered before 1pm, it leaves the same day. UK and Ireland is usually next day, occasionally 1 to 3 days. Europe 1 to 5 days, rest of world 3 to 5 days on express.
If something is not in stock, we will email you right away with an ETA and any available substitutes. On the rare occasion it does not work out, we will happily refund your order.
Will I get stung for customs or import VAT?
No. The price you pay on our website is what it will cost to be delivered to your door. You will not receive any surprise surcharges after ordering.
What if I change my mind?
30 days on all stock items, full refund on the parts. If you ordered the wrong thing we will help you get to the right one for as little money as possible. We have been there.
What warranty do I get?
Everything on our website is covered by the standard manufacturer's warranty.
If you ever need to claim, we fight your corner. We will do everything in our power to make sure you are looked after, rather than leaving you to argue with a manufacturer on your own.
Can I pay it off over a few months?
Yes. Klarna and Shop Pay Finance are both at checkout, so you can spread it without putting the build on hold.
Can I just ask someone what to buy?
That is the bit we are actually good at. We run our own race team and workshop, so you are talking to someone who has fitted it, broken it, and fitted it again. Hit the chat and tell us what the car is doing and what you want it to do.