Originally Posted by Wingless Wonder

Much of this has already been covered in previous threads, but the popular engine management add-on is currently the Cobb Tuning AccessPORT for the WRX and STi (you didn't fill out the 'Car' field in your member Profile). This user-installed device can store multiple maps for different grades of gasoline or engine modifications that can be quickly and easily switched from within the car. Installation is simple and maps are downloadable online.

EcuTek is another popular option for the WRX/STi. No capability yet to store multiple maps. Requires reflash of factory ECU by authorized EcuTek dealer or tuning facility. Reflashing is done through factory diagnostic port by authorized EcuTek dealer and does not require removal of the ECU unless exchanging unit by mail.

TurboXS' UTEC is another option if you want to dabble in tuning your own car (at your own risk, of course). They have applications for both the WRX and STi. Hmm, they've misspelled the word 'engine' on that page.

There are additional standalone engine management systems for the WRX and STi but they are generally used for race applications. The systems mentioned earlier will work on OBD-II-equipped cars and generally provide great performance gains over an untuned combination if professional tuning is done, either custom tuning or downloaded maps.

Can you please fill out the 'Location' field in your member Profile? Just a general location like 'SoCal' is usually good enough but you can be as specific as you like.

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