wonder the same as r6z.

Red: can it be easily made to work with the 03 harness, just swapping the PCM (easy right?) intake and throttle body? I was gettin the idea from other threads on the topic that the wiring was relatively the same? Will an 02 harness be absolutely necessary?

the two engines i currently have my eyes on are both 03's, low miles decent price so hopefully its easy to make work and not too costly