The system is an excellent compromise between price, performance, modern materials and high-quality workmanship. Power & Torque: the Kawasaki responds well to a partial modification of the exhaust, delivering a significant performance increase. The power increase begins right at 3000 rpm, and the increase continues to grow right into the overrev range. At 11900 rpm it puts out 161.8 HP, and the max. increased power is 5.4 HP at 12200 rpm.