Hey guys, I got a dilemma here and need you guys to help me out. I have a 97 Body Style Mustang with no motor. I'm putting in a motor from a 99 mustang gt. I know ofcourse the gt mustangs in both models are both 4.6 L (SOHC) motors but is the ECU anyway differ from each other as oppose to it being a 97 model motor and a 99 model motor? Can I just use a ECU and wiring harness from a 97 GT for the 99 style motor? Please help guys, thanks.