Measurements of the Akrapovič Racing open system on the Suzuki GSX-R600 (without muffler insert):
Power & Torque:
The power increase with the Akrapovič system is substantial, and can be seen from 3500 rpm right to the top of the range. At 14250 rpm we measured 118 HP, with max. increased power of 7 HP at 14250 rpm. The system’s effect on the torque curve is similar to the power curve. The main increase starts at around 7000 rpm and continues right into the over-rev range.
AFTER EXHAUST SYSTEM CHANGE, YOU SHOULD CHECK THE LAMBDA SENSOR VALUE. IF YOUR AIR TO FUEL RATIO IS TOO HIGH THE ENGINE COULD BE DAMAGED. WE RECOMMEND A FUEL INCREASE BY 5%