The 1200 has received the most changes with performance cams, high flow heads and an increased redline from 5500rpm to 6000rpm. All this equates to around a 15% increase from the 03 model giving it 70 hp and 79ft. lbs. of torque. The 883 has not benefited in the same way but still makes a healthy 53 hp and 51ft. lbs. torque a moderate increase from the 03 model.