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

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

Key takeaways

    • Performance component for the Subaru. Engineered to improve efficiency, reliability, and durability compared to factory components.
    • Direct-fit engineering for straightforward installation. Developed for specific platform fitment to ensure compatibility and minimize modifications or complications.
    • Validated for real-world performance demands. Tested under conditions reflecting actual usage patterns—track, towing, spirited driving, or off-road operation.
    • Built in the USA and backed by Lifetime Warranty. Mishimoto manufactures and tests every product at its Pennsylvania facility with comprehensive warranty protection.

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
  • Mishimoto Front-Mount Intercooler
  • Fuel Line Modification
  • 3" Downpipe
  • Tune

Check out a few shots of the car on the dyno!

Mishimoto GR STI on the dyno
Mishimoto GR STI on the dyno


Mishimoto GR STI on the dyno
Mishimoto GR STI on the dyno


As you can see, we have sensors installed on the piping, both the cold- and hot-side of the intercooler. We have pressure and temperature sensors hooked up for logging. We are hoping to capture data on any pressure losses across the core, as well as any temperature reduction we see through the cooler. Check out a close-up shot of the sensors.

Temperature and pressure sensors for testing
Temperature and pressure sensors for testing


Temperature and pressure sensors for testing
Temperature and pressure sensors for testing


Check out a quick video showing a walk around, as well as a few dyno pulls with our completed front-mount intercooler setup!

That's it for this post! Check back in a few days for the results from our testing and a quick recap of the project!

Thanks for reading!

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