topmount

What does one do with a blown Subaru EJ20? We asked this question on one of our social media outlets and had a ton of responses. This included a coffee table, flower pot, speaker system, stove, and even a boat anchor. After spinning a few rod bearings during some dyno testing (this WRX led a pretty rough life), we decided it was time to get creative with the remains. With an upcoming open-house event, we were determined to turn this grimy, beaten engine into a display unit for our Subaru product line.

With little time before the event, we set one of our engineers to the task of disassembling and refinishing this filthy engine. Our goal was to have a mobile display unit that could be used as a great conversation starter at events we attend. The entirety of our product line would be used to provide a neat glance at what we offer for the Subaru WRX/STI. Check out the build process below!

After a few hours in the shop, the engine was finally out and ready for disassembly.

Interested in purchasing our 2015 WRX intake? Check out our product page for more details!

Mishimoto Subaru WRX Performance Air Intake

Dyno testing for our 2015 WRX intake has commenced! Check out a few of the videos captured during the development process.

Thanks for watching!

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Interested in purchasing our STI intercooler? Check out our product page for more information!

Mishmoto Subaru WRX STi Performance Top-Mount Intercooler Kit

Testing day! After a long ride through development and design, it was finally time to see the fruits of our labor. Before strapping the STI to the dynamometer, we needed to prepare the coolers for testing. This included drilling and tapping the coolers for our temperature and pressure sensors at both the inlet tank and outlet tank.

Check out a few preparation shots of our stock cooler!

Interested in purchasing our STI intercooler? Check out our product page for more information!

Mishmoto Subaru WRX STi Performance Top-Mount Intercooler Kit

The wait is over! Time to reveal the full details of our prototype top-mount intercooler (TMIC). This unit is unpainted, and one of the more obvious features is its massive size! First, a few overview images of this cooler.

Mishimoto raw aluminum TMIC prototype

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Interested in purchasing our 2008-2014 Subaru WRX Top-Mount Intercooler? Check out more details on our product page linked below!

Mishimoto Subaru WRX Top-Mount Intercooler

Thanks for returning to the final portion of this build. Now that we have finished testing, it is time to review our data and see the improvements our cooler provided. To start things off, here is a shot of the cooler fully installed!

Mishimoto 2008-2014 WRX Intercooler installed

Let's dive into the data. First, we'll compare the basic specs of our cooler versus the OEM unit.

Interested in purchasing our STI intercooler? Check out our product page for more information!

Mishmoto Subaru WRX STi Performance Top-Mount Intercooler Kit

Did you think we would just develop a top-mount intercooler (TMIC) for the GD WRX and leave out the STI? No way! At around the same time we began development on the WRX, we picked up a new shop vehicle, a 2010 STI. When a new vehicle makes its way into shop service, we need to be sure it accelerates and handles properly. The STI passed our checkup. We then set out to determine what products we wanted to develop first. We already had a few items on the market, including a performance aluminum radiator and a silicone radiator hose kit. Our first target had been a direct-fit oil cooler that proved to be extremely successful, providing a 20°F drop in oil temperatures during our testing. Next we created a plug-n-play fan shroud with dual 12" electric

Interested in purchasing our WRX oil cooler? Check out our product page for more information!

Mishimoto Subaru WRX Oil Cooler Kit

The most obvious thing to do with your brand new WRX is to take it to the track immediately after leaving the dealership. Fortunately, the WRX is a rather competitive package right out of the box. Our initial driving impressions were very positive, and we have no doubt that this vehicle is going to make a big impact on the enthusiast world. We monitored fluid temperatures at stock power levels during normal driving conditions and found that everything seems to be in spec. We are assuming a majority of these vehicles will not remain at stock power levels for