You can advance timing on obd2, you have to jump the service connector by the ecu, putting the ecu into loop mode. It still works, I was running 4 degrees of retard for the nitrous and it never went back to stock on me.
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2015 Ford Mustang GT Fastback - Ingot Silver - 6M - Performance Package - Gibson Catback, JLT CAI, FR 47lb injectors, BAMA E85 tune, Eibach Sportline, BMR wheel hop kit, UPR oil separator, Steeda shifter bushing/bracket
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