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2008-2014 (GR)

  1. 2008+ Subaru WRX/STI Aluminum Coolant Overflow Tank R&D Update!

    2008+ Subaru WRX/STI Aluminum Coolant Overflow Tank R&D Update!

    Interested in picking up our 2008-2014 WRX/STi overflow tank? Check out our discounted pre-sale linked below.

    2008-2014 Subaru WRX aluminum overflow tank pre-sale!

    We last left you with some details of our initial design and a hint of an upcoming pre-sale for this overflow tank. Unfortunately, since that initial test fit we hit a few snags in the design process. Our goal with this product is to provide compatible fitment with all our other 2008+ WRX and STi components. This required numerous stages of test fitting, one of which revealed an issue. With our larger 3-row X-Line aluminum radiator installed, our sight tube on this expansion tank design ended up too close to the belt drive system on our Subaru.

    We decided a revision was necessary. Although the two components were not physically touching, the clearances were just too tight for our comfort. Luckily, our team had an

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  2. 2008+ Subaru WRX/STI Aluminum Coolant Overflow Tank R&D!

    2008+ Subaru WRX/STI Aluminum Coolant Overflow Tank R&D!

    Interested in picking up our 2008-2014 WRX/STi overflow tank? Check out our discounted pre-sale linked below.

    2008-2014 Subaru WRX aluminum overflow tank pre-sale!

    If you haven't noticed, the folks here at Mishimoto are not fans of plastic use for cooling system components. A large number of our products provide a more durable material, aluminum, to replace the failure-prone plastic parts, and now we are focusing on another line of products, our aluminum coolant expansion tanks. We offer two different options for the WRX/STI and one for the new Mustang EcoBoost. This article is focused around our newest addition, an aluminum overflow tank for the 2008+ WRX and STI.

    Product Design

    We won't be making any significant changes to the design of this tank compared to the stock unit, except for the construction material. Enlarging the tank's capacity will

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  3. Get rid of the plastic! Mishimoto's Subaru 2008-2014 WRX Aluminum Expansion Tank R&D

    Get rid of the plastic! Mishimoto's Subaru 2008-2014 WRX Aluminum Expansion Tank R&D

    Interested in picking up this awesome aluminum expansion tank? Check out more details on our product page linked below!

    Mishimoto Subaru WRX Aluminum Coolant Expansion Tank

    Last year we released an aluminum expansion tank for the 2004-2014 STI and 2002-2007 WRX. We received a ton of awesome feedback from customers and enthusiasts regarding this component, as well as recommendations to produce such a tank for 2008-2014 WRX owners.

    While we normally highlight our development process in multiple installments, for this Expansion Tank we wanted to give you everything in one quick shot.

    Stock Expansion Tank

    Although we don't see quite as many failures with the 2008-2014 expansion tank, we can assume it will incur some wear over time. This tank sits relatively close to a very hot turbocharger/exhaust and handles coolant with temperatures

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  4. A New WRX/STI Catch Can System, Part 2: WRX Test Fitting

    A New WRX/STI Catch Can System, Part 2: WRX Test Fitting

    Interested in purchasing our WRX or STi catch can system? Check out more details on our product pages linked below!

    Subaru WRX Baffled Oil Catch Can System

    Subaru STi Baffled Oil Catch Can System

    After completing the fabrication of our brackets for this kit and assembling the STI-specific lines, it was time to tackle the WRX. As you may be aware, the stock CCV lines are slightly different on the WRX, which necessitates a separate set of WRX-specific catch can lines.

    The Test Subject

    After reaching out to local contacts, we found a willing vehicle donor just one state away. We have borrowed this particular vehicle on several occasions for a variety of test fittings. A big "thank you" to the owner for lending his vehicle and his time for the sake of awesome new product development!

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  5. A new WRX/STI Catch Can System, Part 1: Initial Fabrication

    A new WRX/STI Catch Can System, Part 1: Initial Fabrication

    Interested in purchasing our WRX or STi catch can system? Check out more details on our product pages linked below!

    Subaru WRX Baffled Oil Catch Can System

    Subaru STi Baffled Oil Catch Can System

    Mishimoto 2010 STI
    Mishimoto 2010 STI

    After developing a highly successful, direct-fit catch can setup for the 2015 WRX we turned our attention to the previous generation. Our next target would be the 2008-2014 WRX and STI. At this point, Mishimoto still owned a 2010 STI, and this project would be our last for our shop vehicle.

    Catch Can Selection

    As with our 2015

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  6. 2008-2014 Subaru WRX Top-Mount Intercooler Pre-Sale!

    2008-2014 Subaru WRX Top-Mount Intercooler Pre-Sale!

    Our pre-sale is now live for the Mishimoto 2008-2014 WRX top-mount intercooler kit!

    For more details on how to join the pre-sale and purchase this kit with discounted pricing, check out the link below!

    Pre-Sale Link

    Additionally, feel free to skim through our build process and testing data on our blog!

    Enjoy the image gallery below which features our final design and a few of our charts from testing!

    Thanks

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  7. Mishimoto Subaru WRX/STi FMIC Kit, Part 8: Testing Data Presentation and Project Recap

    Mishimoto Subaru WRX/STi FMIC Kit, Part 8: Testing Data Presentation and Project Recap

    Interested in purchasing our Subaru WRX or STi intercooler kit? Check out more details on our product pages linked below!

    Mishimoto Subaru WRX/STi Front-Mount Intercooler, 2001-2007

    Mishimoto Subaru WRX Front-Mount Intercooler, 2008-2014

    Mishimoto Subaru STi Front-Mount Intercooler, 2008-2014

    Time to review our data so we can finally put a close on this project. The product development process for this front-mount intercooler has taken months and has also helped refine several of our processes. Before we move into the testing data, our first portion of this post will cover the physical benefits of our intercooler. By providing a more efficient heat exchanger, we can ensure that higher-powered vehicles are not being hindered by debilitating heat-soak

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  8. Mishimoto Subaru WRX/STI FMIC Kit, Part 7: Cooler Efficiency Testing

    Mishimoto Subaru WRX/STI FMIC Kit, Part 7: Cooler Efficiency Testing

    Interested in purchasing our Subaru WRX or STi intercooler kit? Check out more details on our product pages linked below!

    Mishimoto Subaru WRX/STi Front-Mount Intercooler, 2001-2007

    Mishimoto Subaru WRX Front-Mount Intercooler, 2008-2014

    Mishimoto Subaru STi Front-Mount Intercooler, 2008-2014

    We are nearing the end of this build. As mentioned in the last post, we wanted to put our core to the test and provide some cooling efficiency data that our customers could use. We decided to modify our 2010 STi to add some heat and power to the CAC system for testing. Information regarding our vehicle is listed below.

    2010 Subaru WRX STI

    • 6-Speed Manual
    • Mishimoto Intake
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  9. Mishimoto Subaru WRX/STi Front-Mount Intercooler Kit, Part 6: Final Prototype Installation Shots

    Mishimoto Subaru WRX/STi Front-Mount Intercooler Kit, Part 6: Final Prototype Installation Shots

    Interested in purchasing our Subaru WRX or STi intercooler kit? Check out more details on our product pages linked below!

    Mishimoto Subaru WRX/STi Front-Mount Intercooler, 2001-2007

    Mishimoto Subaru WRX Front-Mount Intercooler, 2008-2014

    Mishimoto Subaru STi Front-Mount Intercooler, 2008-2014

    As promised, we have a couple cool images showing these kits fully installed on our test vehicles. Check them out below!

    First, our full kit installed on our shop 2003 WRX Bugeye wagon!

    Bugeye wagon with Mishimoto kit fully installed
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  10. Mishimoto Subaru WRX/STi Front-Mount Intercooler Kit, Part 5: Intercooler Pipe Fabrication/Development Continued

    Mishimoto Subaru WRX/STi Front-Mount Intercooler Kit, Part 5: Intercooler Pipe Fabrication/Development Continued

    Interested in purchasing our Subaru WRX or STi intercooler kit? Check out more details on our product pages linked below!

    Mishimoto Subaru WRX/STi Front-Mount Intercooler, 2001-2007

    Mishimoto Subaru WRX Front-Mount Intercooler, 2008-2014

    Mishimoto Subaru STi Front-Mount Intercooler, 2008-2014

    GR STI stock intercooler removed
    GR STI stock intercooler removed

    Once the engine bay was evaluated, we began to fabricate piping. Our goal was to route these pipes in the cleanest possible fashion while keeping the route as short as possible. First, the upper

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