Mishimoto MMRAD-STI-08 Performance Aluminum Radiator, Compatible with Subaru Impreza WRX & STI, 2008-2019
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Availability:
19 left in stock
Arrives
Sunday, Jun 22
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Features
- Direct fit for the 2008-2019 Subaru WRX and 2008-2015 Subaru Sti
- Overall Size: 28" x 21.8" x 2.15" / Core Size: 13.39" x 27.08" / Rows: 2
- Inlet & Outlet: 1.54" / Core Thickness: 1.65" / Tank Wall Thickness: 0.08"
- TIG-welded aluminum radiator includes high-pressure rad cap and magnetic drain plug
- Mishimoto Lifetime Warranty
Description
The Mishimoto performance aluminum radiator for the Subaru WRX and STI is designed and engineered to maximize cooling efficiency by up to 30 per cent, boost engine functions, and most importantly protect the car from overheating.
Manufacturer: Mishimoto
Brand: Mishimoto
Model: MMRAD-STI-08
Item Weight: 7.65 pounds
Product Dimensions: 78.74 x 12.7 x 55.88 inches
Item model number: MMRAD-STI-08
Is Discontinued By Manufacturer: No
Exterior: Painted
Manufacturer Part Number: MMRAD-STI-08
OEM Part Number: MMRAD-STI-08
Date First Available: February 1, 2006
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Jun 22
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
For a 2008 WRX. Had on car for 2 years now. No issues at all. Temperature is solid. Also shines up the engine bay with the shinny aluminum. Easy install and direct fit. (Side note, I had to cut an inch on all hoses connecting to the radiator since its so much thicker but had no other clearance issues)
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Reviewed in the United States on October 29, 2018 by Alexander Pajor
Replaced OEM radiator on 08 WRX as it was leaking from top where plastic meets metal, gauge seems to run a little lower than before, and measured temps with Cobb AP and it never went above 195, great fitment, very worthwhile upgrade if your pushing more power than stock.
Reviewed in the United States on October 22, 2021 by clayton
Excuse the bad joke above; seriously though, this radiator is nice. I bought this radiator because my 08 WRX was leaking (turns out the plastic drain port on the stock radiator was on the verge of crapping out.) The Mishimoto is an upgrade and happened cost less than an OEM radiator, a big plus. This is also full aluminum which means that unlike the stock radiator, which is plastic and aluminum, everything heats and cools at relatively the same time meaning it's less likely to leak if properly installed. This radiator is thicker and will require some finagling in order to put it in, but its really not a very difficult job. I think it would fit without cutting original hoses, but I ended up cutting about an 1/8 to 1/4 in off some hoses in order to make everything fit nicer. Overall, I'm very pleased with Mishimoto.
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Reviewed in the United States on December 1, 2018 by Tyger Falcon
Coolant system leaked about a month after installation; called customer service to inquire about warranty replacement should it have been the radiator that failed. Spent about five seconds on hold before helpful service representative walked me though the warranty claim process which seems very straightforward. Fortunately the radiator itself was not directly at fault. Radiator is very nearly direct fit in the 2005 Legacy GT engine bay; it does require some modification to (in particular) the upper radiator hose. However, clearance on the upper hose is very close to the stock fan, and the leak was ultimately caused by the fan wearing a small hole into the upper hose even though it seemed clear when the system was cold. Going to attempt to reinstall with low-profile fan shroud kit which should help.
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Reviewed in the United States on November 25, 2017 by Patrick O'Leary
Package shipped quick and the install was easy and straight forward. The radiator is solid quality, just make sure to burp it thoroughly. If you are swapping the upper or lower radiator hoses, you may need to trim them down a bit since this radiator is a bit wider than the oem one.
Reviewed in the United States on January 3, 2025 by Amazon Customer
Fits well and seems more efficient than the stock one on my 2010 Subaru Sti. The stock fans mount up fine and there is some trimming of the coolant lines necessary since this is thicker. However, it did not come with the magnetic drain plug mentioned in the description. I also replaced the coolant lines (w/ Gates) and both radiator caps (w/ Stant 20Psi) ones at the same time. Updated: After chasing a leak for 7 months now I've traced it to the radiator. Not happy. Hopefully the lifetime warranty works out
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Reviewed in the United States on April 6, 2016 by Garrett Garrett
Came really quick, actually came the next day after i ordered which was earlier from the expected arrival time. was nicely packaged item was safe during transport. as the the quality it self is good. looks very nice and shiny. well built. The install was easy no issues with it. although if you using the factory hose on the top. i had to cut about half a inch off it because the rad is a lot thicker then the stock one so the hose was to close to the alternator. which with the engine rock on hard acceleration the engine could rock enough to slice the hose. but that's a easy mod or you can buy the hose kit from Mishimoto. Other wise the performance is good. Car sits around 180-190F as before it would be around 200-206F. product works well and looks very nice and solid in the engine bay.
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Reviewed in the United States on November 22, 2015 by arthur
Well worth the price. Exceptional all aluminum construction and finish. Added a good high performance high flow thermostat and my WRX comes up to temperature and seems to run cooler and more efficiently.. will update once we get some warmer weather here in the Midwest.
Reviewed in the United States on February 29, 2020 by Amazon Customer