The power commander does not work on ST1300s. The ECU learns and does its own thing. AS with the ST1100, the basic design of the ST1300 is for flat torque curves, so the intake and exhaust systems restrict what can be done to easily improve performance. A K&N filter and exhaust changes are about it, and even then it is more about the sound rather than performance. The money thrown at improving performance (head work, porting, increased compression ration, modified ECU etc etc) would be better spent on getting another bike.