Subaru WRX/STi Catch Can Kit 2008-2014

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!

2011 WRX test-fit vehicle

This vehicle is kept super clean; check out the engine bay!

2011 WRX test-fit vehicle engine bay

This owner also has our cold-air intake setup installed!

Mishimoto intake installed

WRX

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

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 WRX project, we would be using a dual catch can system to address both the PCV line and the crankcase breather line. One of the main differences would be the inclusion of a three-port breather catch can to replace the two-port unit used on the FA20 engine. The EJ engine features a breather line for each valve cover, which necessitates a dual-in, single-out catch can for that system. The PCV line would still use a standard dual-port catch can for the EJ.