Hello, I apologize I am new to forums so if this has already been answered please just lead me in the right direction. I am replacing the 2.5L turbo GT engine in my 05 legacy GT with a 2.0L JDM ej20x. I also have the JDM ECU. Will this ECU need to be tuned/ programmed since it is going into a JDM engine? If so can the dealership do that? I have the wire harness from the JDM engine but not the half that would connect to the car itself. Will the connectors on my car now work with the new engine? Is there anything I have overlooked that will also need replaced doing this swap that I haven't thought about? Thank you in advance!
