The results: 87.6 hp at 7,900 rpm with 64.9 pound-feet of torque at 3,400. The numbers were virtually identical to the baseline 88 hp at 7,800 and 64.8 pound-feet at 5,850. When you compare the two charts, the stock (before reflash) and slip-on traces are very similar up to about 6,500 rpm, where the stock bike keeps rising to a peak just before 8,000 rpm. With the reflash and the slip-ons, the Scout’s hardy V-twin lost a bit of power compared to stock, starting at 6,500 rpm and continuing through about 7,800 rpm; it carried on slightly longer than stock, however. The point is this: There’s no effective change in power where most riders will enjoy the Scout. And Indian, for its part, agrees, calling the slip-on system mainly a way to get a throatier exhaust note.