Akrapovič Slip-on Line 4-stroke FE (250, 350, 450, 501) 15-16Akrapovi silencers have been conceived for enduro riders who are looking for the best exhaust systems available on the aftermarket and who know how optimum power development can best be achieved on the enduro track or in open terrain. The hexagonal silencer is a perfect match for the lines of the Husqvarna. The benefits: Higher top speed Optimum power development throughout the rev range Highest quality workmanship Carbon clamps and carbon end cap