Features: Optional headers offer an upgrade to a full system when used with the Akrapovic Slip-On exhaust system. Let your bike stand out with more power, a beautiful design, and the unique Akrapovic sound. For perfect performance, throttle response and durability, special developed mapping is recommended. When installing on Euro5+ motorbikes (2 lambda sensors), the engine check light will appear after identifying a deviation in the stock catalytic converter´s parameters..