Join Date: Mar 2013
Location: Ontario, Canada
None of the 'improvements' you've made to the engine become an improvement until you get an engine tune that takes advantage of them.
Essentially you've re-engineered the engine with the changes and the ECU assumes you've still got the stock hardware mounted.
It also helps to develop a relationship with a tuning shop, because you'll need to go back to them to update the engine tune if you make any further changes.
This is the part of owning a trick machine that is higher cost and more maintenance than a stock WRX. It's like the duality of a woman (or guy for that matter); some parts are great, and others hard to live with. Ha ha.
Laszlo - white '11 STi sedan
Buckle up. The all-new WRX STi is here.
Last edited by LW_Black4; 04-23-2014 at 01:27 PM.