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Subaru WRX Top-Mount Intercooler 2015+

  1. Does The WRX Need An Upgraded Intercooler? Part 6: Air Shroud Design and Testing

    Does The WRX Need An Upgraded Intercooler? Part 6: Air Shroud Design and Testing

    Interested in purchasing our 2015 WRX top-mount intercooler kit? Check out more details on our product page linked below!

    Mishimoto Subaru WRX Performance Top-Mount Intercooler and Charge-Pipe System

    As noted in our previous post, we decided to design a shroud that would channel airflow more efficiently through the core of our intercooler. Because our cooler features a larger footprint, the stock air shroud directs flow to only a portion of the core. Opening up this airflow to the entire core should result in even greater temperature reductions than we saw during our first round of testing.

    Stock Intercooler Shroud

    First, let's take a look at the stock shroud as Steve removes it from our test vehicle. Here is what you will see under the hood of your WRX.

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  2. Does the 2015 WRX Need an Upgraded Intercooler? Part 5: Testing and Results

    Does the 2015 WRX Need an Upgraded Intercooler? Part 5: Testing and Results

    Interested in purchasing our 2015 WRX top-mount intercooler kit? Check out more details on our product page linked below!

    Mishimoto Subaru WRX Performance Top-Mount Intercooler and Charge-Pipe System

    Dyno Preparation

    Time to finally answer the question we have been discussing for months. Would the 2015 WRX benefit from an upgraded intercooler?

    To test both the stock unit and the Mishimoto prototype unit, we would need to drill and tap the coolers to accept our temperature and pressure sensors.

    First, we installed a sensor bung in our silicone throttle-body hose. This would capture post intercooler data for all three coolers.

    Mishimoto throttle-body hose with sensor</body> " width="300" height="261">
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  3. Does the 2015 WRX Need an Upgraded Intercooler? Part 4: Charge Pipe Development

    Does the 2015 WRX Need an Upgraded Intercooler? Part 4: Charge Pipe Development

    Interested in purchasing our 2015 WRX top-mount intercooler kit? Check out more details on our product page linked below!

    Mishimoto Subaru WRX Performance Top-Mount Intercooler and Charge-Pipe System

    We've shared a ton of teasers that show our awesome charge-pipe design for the 2015 WRX. Now it is time to show you how this component came to life.

    First, take a look at the factory-equipped charge pipe.

    Stock 15' WRX charge pipe
    Stock 15' WRX charge pipe

    Stock 15'</body> " width="300" height="225">
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  4. Does the 2015 WRX Need an Upgraded Intercooler? Part 3: Mishimoto Prototype Installed

    Does the 2015 WRX Need an Upgraded Intercooler? Part 3: Mishimoto Prototype Installed

    Interested in purchasing our 2015 WRX top-mount intercooler kit? Check out more details on our product page linked below!

    Mishimoto Subaru WRX Performance Top-Mount Intercooler and Charge-Pipe System

    Size Comparison

    Before installing our prototype cooler on one of our 2015 WRXs, we decided to take a few shots showing the huge size difference of our cooler compared to the stock unit.

    Mishimoto prototype intercooler (left) and stock intercooler (right)
    Mishimoto prototype intercooler (left) and stock intercooler (right)

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  5. Does the 2015 WRX Need an Upgraded Intercooler? Part 2: The Mishimoto Prototype

    Does the 2015 WRX Need an Upgraded Intercooler? Part 2: The Mishimoto Prototype

    Interested in purchasing our 2015 WRX top-mount intercooler kit? Check out more details on our product page linked below!

    Mishimoto Subaru WRX Performance Top-Mount Intercooler and Charge-Pipe System

    3D Modeling

    Now that the stock intercooler has been evaluated and modeled, we began designing our own cooler. Check out some of the initial models we put together for this prototype!

    Stock (left) and Mishimoto prototype (right) intercooler model
    Stock (left) and Mishimoto prototype (right) intercooler model

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  6. Does the 2015 WRX Need an Upgraded Intercooler? Part 1: Intro and Initial Development

    Does the 2015 WRX Need an Upgraded Intercooler? Part 1: Intro and Initial Development

    Interested in purchasing our 2015 WRX top-mount intercooler kit? Check out more details on our product page linked below!

    Mishimoto Subaru WRX Performance Top-Mount Intercooler and Charge-Pipe System

    Many of you checked out our recent thread about our progress on the 2015 WRX top-mount intercooler. We are finishing some testing to ensure that our product will provide the improvements our customers expect. Our prototypes look awesome, and so far they are proving to be quite efficient. So, we've decided to back-track a bit and highlight the process our team went through to create such an awesome product. We will also be including our final test results, as well as information about how you can get your hands on one of the first units to hit the shelves. Keep an eye on our threads and blog; we have some exciting stuff in the pipeline!

    How It All Started

    In late March our team ventured

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