HR32 Posted August 12, 2014 Share Posted August 12, 2014 Hi all I have a V3 WRX RA I've heard from various places that these JDM wrx's often came with STI motors, but then I've heard others who say they do not. Does anyone have any more information? My car has an 1S ECU, like the motors i have heard that this is a WRX ECU, and elsewhere that it is an STI ECU. Im currently running 1Bar of boost but i want to run more so want to know if its possible my car may have an STI engine. Also does anyone know if swapping to the V3 STI 6S ECU will yield any benefit to my car? thanks for any info in advance Cheers Link to comment Share on other sites More sharing options...
loner Posted August 12, 2014 Share Posted August 12, 2014 it's an urban myth. Link to comment Share on other sites More sharing options...
Steviep168 Posted August 12, 2014 Share Posted August 12, 2014 Have a look on here as they might be able to advise you further matie…... www.type-ra.com Link to comment Share on other sites More sharing options...
Timmah Posted August 13, 2014 Share Posted August 13, 2014 1S = non-STi 6s = STi Your engine if factory is an EJ20K, but not an STi 20K so it's not as strong. There's no "STi" parts from factory, the V3 WRX Sedan and STi happen to share a very similar set up. Link to comment Share on other sites More sharing options...
hijacka Posted August 13, 2014 Share Posted August 13, 2014 Yes it will be a faster car with 6s ecu. Link to comment Share on other sites More sharing options...
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