Performance
Measurements of the Akrapovic SLIP-ON STREET LEGAL system on the KAWASAKI ER-6N (without muffler insert):
Power & Torque: the exhaust system modification with the SLIP-ON system results in a major boost in performance, delivering a usable 72 HP at 8900 rpm on back wheel. But the increased power isn’t available just at the top of the range; the system shows its quality already from 2000 rpm up through entire rpm range. The maximum power increase between the Akrapovic and the stock system is 4 HP at 5440 rpm. Additionally, the torque is substantially higher in the lower rpm area at 3000 rpm and in the middle of rpm area.