The first time I lined up on the Stage III Road King, I just spun tire like a fool. The second time, I was too soft on the clutch and had a slow launch, but recovered and pulled a decent time. The third time, I finally got a run I was proud of and really got the see what the M8 can do when it’s all opened up. Stage III ($1,600) is big. Bigger bore, higher-compression pistons, as well as a cam and lifters, providing a claimed 24-percent increase in torque and up to 39 percent more ponies. You get more power that lasts throughout the entire range. The difference between a stock bike and a Stage III for me, was 13.70 to 12.70 seconds on the quarter mile. Not to mention the feel, the sound, and everything else that comes from upgrading all these systems on your bike.