Page 6 - dyno

Interested in purchasing this Duramax Intercooler? Check out the product page for more information!: Intercooler Kit, fits Chevrolet/GMC 6.6L Duramax 2011-2016

Welcome back! In our last segment we removed the factory intercooler so we could determine if this project would even be necessary. The good news is, all that work was not for nothing; our team found several aspects of the factory intercooler that could be improved. Check out a few more detailed images of the factory intercooler.

First, a peek at that interesting metal end tank we discussed in part 1 of this article.

Factory LML intercooler metal hot-side end tank

Interested in purchasing this Duramax Intercooler? Check out our product page for more information!

Mishimoto Chevrolet/GMC 6.6L Duramax Intercooler Kit

Product Introduction

The LML Duramax is the cleanest and most powerful Duramax thus far. The innovations made for this new model are quite substantial and are a direct result of serious advances in automotive technology. Unfortunately, stricter emissions standards of today result in the inclusion of a DPF (diesel particulate filter) system, which improves emissions yet hampers fuel mileage.

Luckily, not all the innovations for newer Durmax models are in place to provide cleaner air; several features of the new engine are in place for improved performance and reliability. Among the long list of improvements, a few highlights include a quick-spooling VGT turbocharger, a factory-equipped exhaust brake, upgraded designs of the main

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!

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

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

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