The 2.0 liters are pretty wimpy, the 2.5L is a whole lot more power but from all my reading the 2.0l is a better engine,and it is the one they turbo... Sub has the 3.0 liter 6 also. I haven't worked on or driven one yet. I see some on the roads and they scoot...........
I put a 2.0L in the outback I drive, and yes its under powered!!!! and the computer isn't quite sure of the torque levels of the smaller engine, SHifts a little weird. LOL