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    Sct X4 Question And Crank Relearn Advice Wanted

    Hi guys, I've just installed a 2014 engine into my 2011 GT and I think my ECU has a tune on it, only worked it out when it would only run with a big JLT intake and wont run with a stock one. I want to retune the ECU to a tune that I know and trust. Now with that, can I just flash the ECU...