Tag Archives: sti

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 … Continue Reading ››

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 … Continue Reading ››

Mishimoto 2015+ Subaru STi Performance Cold-Air Intake System, Part 4: Race Intake System

Interested in purchasing our 2015 STi intake system? Check out more details on our product page linked below!

Mishimoto Subaru STI Performance Air Intake

As noted earlier in this article series, we would be tackling a race intake system to go along with our bolt-on unit. So what makes the race system different? For this particular system we are using a larger-diameter intake pipe with a larger MAF housing. This means greater intake flow, but it also means it will no longer function with the factory tune. This system is meant specifically for drivers who want aggressive professional tunes so they … Continue Reading ››

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 … Continue Reading ››

Mishimoto 2015+ Subaru STI Performance Cold-Air Intake System, Part 3: Testing

Interested in purchasing our 2015 STi intake system? Check out more details on our product page linked below!

Mishimoto Subaru STI Performance Air Intake

Dyno Testing Time to see what kind of power gains we are able to achieve with our intake design! First, we strapped this Launch Edition to the dynamometer.
2015 STI on the dynamometer
2015 STI on the dynamometer
2015 STI on the dyno
2015 STI on the dyno
Then we began making pulls. On our first day … Continue Reading ››