Evolution Line Exhaust SystemAkrapovic titanium Evolution systems are designed for riders that demand maximum performance from their motorcycleThe systems are significantly lighter compared to the stock exhaust system and feature exceptional production quality, hi-tech materials, and of course increased engine performance combined with pure racing sound outputPerfect welds and a combination of racing materials like titanium and carbon fiberPassenger footrest has to be removed for installationFor perfect performance, throttle response and durability special developed mapping from Dynojet is recommendedMust remove passenger pegs to install.