Mishimoto MMRAD-STI-08 Radiator, Subaru Impreza WRX & STI 2008-2019

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)

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.

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.

I was in a rush to replace the stock 2010 Impreza WRX Radiator due to the upper hose inlet failing. Well pretty much since install (2021) this Mishimoto Radiator has been nothing but troubles and I haven't replaced it yet but the drain plug just leaks and leaks and leaks, drip by drip.. Searched some online forums and it seems to be a manufacturing defect with certain batches which I presume mine is a part of. I wasn't rich in 2021 and still not but now making a good living so I've went back to tend and care for my WRX. Resolving issues one by one, now I'm finding myself in a rut due to this poorly constructed radiator that cost's way more than it's worth in my opinion and I'm a machinist. Everything from the welds to the core and threads plus the ports are terribly machined and fabricated. At the time I fell for the "Lifetime Warranty" aspect, which I find hard to even succeed in establishing any remedy with this company. I purchased hoses as well which have recently failed also.. Steer clear and fork the dough for a more reliable and well made product versus this garbage. Never again Mishimoto..

reduces average temperature once the car is warmed up by 15-20 degrees F. solid construction. note- the radiator allows for a higher PSI so make sure your hose clamps are tight and that the hoses are in good shape. replace your thermostat when installing the new radiator since you will be draining the coolant. This car is my DD.

Had to replace the stock radiator after the fittings fell apart in my hand (140k miles). This radiator cooled my running temps during the summer by 10-15 degrees and has a much faster recovery time. The only difficulty in installation was that the fan mountings are about 1/8” off on a few bolts (don’t use a drill on the fan shroud, it will shatter, use a file). Otherwise, a great product that I would highly recommended over stock. I usually stay with OEM parts for everything, but this is so much better. Don’t wait, replace yours before it fails at an inconvenient time.

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.

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.

Great product and was a direct fit with just a small trim from each rad hose..

Fantastic product lowered water temperature but 5 degrees