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Bisbell94
07-06-2015, 07:24 PM
Hey everyone, I have a 1987 325e...ish. I say ish because its a mixed up monster of a motor and I need help. I haven't had the car long and I have no idea what to do. The bottom end is the 2.7 L bottom end and a 2.5L top end. Now usually people say, "TURBO THAT THING BRO!" but right now I just want to change the original ECU that was with the original complete 2.7L motor to the 2.5L ECU so I can get my available high end revving. Now, my questions are, can it be done? And where is a good place to get a upgraded and tuned 2.5L ECU? Any info i can get is helpful. Thanks!