I would think they would be programed about the same performance wise. There is a difference between the T1 and T2 motors. The MP unit is programed more for performance(more boost). I happened to find a list of part #'s, Here are the only ones listed for the TC's.
4425209 1989 MASERATI TC 16V M/T
5233258 1989 MASERATI TC TII A/T
5234124 1989 MASERATI TC TII A/T
5234126 1989 MASERATI TC TII A/T CAL