Your cart is empty.
Your cart is empty.Whether you daily drive a stock STI or rallycross a modified WRX, an efficient cooling system is key to extending the life of your flat-four. The plastic end tanks of the stock radiator are especially prone to cracking from years of constant variation in temperature. A radiator failure can result in overheating, head gasket failure, and other engine damage that can quickly put an end to a fun day at the track. Protect your investment with the Mishimoto performance radiator engineered specifically for the 2001-2007 Subaru WRX and STI. After identifying the radiator in these vehicles as a weak point, our engineers set out to provide an efficient, durable radiator that can take the abuse of competitive driving and provide the reliability you need for daily commuting. This radiator features all-aluminum construction, which provides increased heat and pressure tolerance, improved heat dissipation, and improved cooling efficiency. The 100% brazed aluminum core and TIG-welded end tanks provide optimal durability and years of efficient and reliable service. This radiator is a complete bolt-in unit and replaces the factory radiator without requiring any modification to your Subaru. The Mishimoto Performance Aluminum Radiator that fits Subaru includes a high-pressure 1.3 bar radiator cap. This cap effectively raises the boiling point of the coolant, thus providing a higher threshold for safe temperatures and resulting in a more efficient cooling system. This radiator provides a significant increase in coolant capacity, which allows for aggressive driving while retaining safe coolant temperatures. As with all our products, this radiator includes the Mishimoto Lifetime Warranty.
Brad Halt
Reviewed in the United States on September 15, 2024
Easy install. Working well.
Easton Pal
Reviewed in the United States on August 17, 2024
Installed nicely on my 2005 STi. Make sure you tighten down the drain plug (mine was loose). Also use your new mishimoto cap on the expansion tank and move the OE expansion tank cap to the Mishimoto radiator. Check their site for instructions if you're not sure why. Welds are beautiful, everything bolted up nicely. I had to trim my SPT radiator shroud (aftermarket) to clear the overflow nipple but nothing major. Car runs cool (200F max in 100F ambient stop and go). It did make the upper radiator hose get too close to the pulleys, so I shortened it slightly.
Rodcat
Reviewed in Canada on May 4, 2024
Great quality.
HBSJCHS
Reviewed in the United States on April 24, 2024
This is a great radiator. Much thicker than stock and should cool the engine much more efficiently. Note that since the radiator is larger than stock, it doesn't fit with the surrounding hardware as well as the OEM one. With the stock radiator fans installed, the power steering hoses need to be shoved aside slightly to fit around the assembly.Stock fans do fit well, but you will need to also order at least qty. 4 M6x10 bolts, as the mounting points for the fans and the coolant crossover tube are now M6 threads instead of the coarse-thread self-tapping screws used in the OEM plastic radiator. This is a nice upgrade, but it's not mentioned in the description and the hardware doesn't come with the radiator.Additionally, you will need to order generic coolant hose of ID 1/4" to connect the coolant crossover tube to the nipple on the radiator cap protrusion. The OEM part 45162FE010 (for 2004-2007 Imprezas) no longer fits without stressing the hose considerably.Aside from these small fitment issues, it's a great upgrade.
marcodeltona
Reviewed in Italy on August 5, 2020
inizialmente mi e' arrivato il pacco con un radiatore non corretto , di un altro modello, ho fatto la restituzione e ordinato di nuovo, e' passato piu tempo del previsto causa questo errore ,ma ne e' valsa la pena , ottimo prodotto , plug & play con l ' originale , consigliato !
oscar fernandez
Reviewed in Spain on April 1, 2020
Mas q provada la calidad de los productos mishimoto. 11 sobre 10
Scott Lancaster
Reviewed in the United Kingdom on August 4, 2019
Arrived very promptly well packaged. Quality is good and the piece of mind from Mishimoto's lifetime warranty is good.
B. Wright
Reviewed in the United States on January 25, 2017
I bought this as the radiator in my 02 Subaru WRX was leaking. Swapping the old one out and putting this in was a pretty easy job. About an hour total. The radiator looks wonderful under the hood and appears to be great quality. The reason this gets a 4 stars is because the first time I drove my car after replacing this it overheated because the cap that is included was leaking so bad once the car warmed up that i lost a ton of coolant. Now the replacement cap I picked up was only about 12 dollars at the store, the point is that when buying a aftermarket radiatior and spend a few hundred dollars you don't expect to have to change the cap immediately.
thomas Maynard
Reviewed in the United States on September 6, 2015
This review is a two part one. Firstly for the product itself and secondly for Amazon's quality of service. I ordered this radiator for saturday shipping and was told to expect it by or before 8 pm on saturday. Sure enough it arrived before, way before. I came home at 10 am to leave a note for Fedex just incase they needed a signature as I could not chance missing delivery. Upon inspection I noticed mishimoto really has pride in their product. It was packaged in a beautiful black box with glossy logo printed down the side with a product name and description rather than your usual brown box with simple serial number and barcode. That was a great first impression. Things just got better from there. The radiator was neatly packaged with protective sleeves and a company print clear vacuum sealed plastic wrapping. The fit was absolutely spot on. In fact, it may be the best fitting non factory piece on my car. The welds are beautiful and it makes a great show piece on top of being a great service/performance part. The only two things I have to gripe about are the fact that no matter what you do, it seems the overflow nipple block off is a destined to fail install. I ended up just using epoxy to seal off the hole as the bolt snapped in half stuck in the thread. My only other complaint is the lack of stickers. Seriously Mishimoto, how am I supposed to tell everyone my car is super fast and sponsored without super awesome brand name stickers? Other than that I am way more than satisfied with the product and exceptionally happy with the buying experience. Would recommend to anyone with a cracked crappy stock radiator. Seriously just splurge so you never have to replace the stock junk radiator again. Would totally do it again but I don't cause I have a proper radiator now
JensG
Reviewed in Germany on April 21, 2015
Ich habe mir diesen Kühler für einen Leistungsgesteigerten Subaru Impreza WRX geholt,da der Orginale doch nun langsam an seine Grenze kommt.Einbau war einfach und Kühler passt wunderbar an den Orginal Einbauort.Alle nötigen Schrauben zur Befestigung der Lüfter werden mitgeliefert.Kühler sollte vor Einbau gründlich ausgespült werden da doch einige kleine Aluspähne sich noch im Innern befindenund nicht in den Kühlkreislauf wandern sollten.Kühleistung ist spürbar besser und Motortemperatur hebt nun nicht mehr ab wenn der Wagen gefordert wird.Empfehlung:Am besten beim Tausch gleich noch Racing Thermostat von Mishimoto bestellen und tauschen. Funktioniert prima zusammen.
Mike
Reviewed in the United States on July 9, 2013
I can't tell you how many aftermarket radiators I have seen installed at my shop that just don't fit at all. For my car, I upgraded to this radiator not because I need the performance of a higher flow radiator, although I enjoy knowing that part, but because I figured there would be more pride taken in the build quality and application specific design of this product. Let me tell you, I am impressed. There's no drilling of new holes, there's no bending, cutting, or straining to make the thing fit. In my 06 WRX, this thing is a perfect fit. Fans and coolant tubes transfer over perfectly. No thread damage requiring tapping. Nothing out of place. Really high quality welds and construction. Not a single fin out of place - awesome packaging keeps it totally protected. Premium quality metal drain plug; I mean these guys take pride in their workmanship. Oh, don't let me forget to mention that this thing looks awesome!!! Beautifully polished tanks shine when you open the hood. Add on some blue or red silicone radiator hoses, and you're on your way to cool-dom (no punn intended). It's worth the frickin' money - don't do it, don't buy that piece of crap aftermarket plastic tank I'm gonna have to replace it in 4 1/2 months on the side of the freeway along with my head gasket crapiator; it's not worth it. Cheers! :)
Recommended Products
