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V3 WRX RA - STI parts from factory?


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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


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