Available at Motostrano.com, The Akrapovič Slip-On exhaust system is designed for riders who do not want to make expensive and major modifications to their stock exhaust system. However, the Hexagonal muffler delivers great looks as well as increased performance for the popular Suzuki. The Akrapovič Slip-On system is also EC Type approval.  Performance  Measurements of the Akrapovič Slip-On system on the Suzuki GSX-R600 (without muffler insert):  Power & Torque: The Akrapovič Slip-On exhaust system increases your engine power and its torque at practically every rpm. Especially from 5500 rpm on, the Akrapovič Slip-On EC Type approval exhaust system adds an increase in power, all the way up to the top of the rpm range.