Optional available headers from the finest stainless steel offer an upgrade to a full system when used with the Akrapovic Slip-On exhaust system. Let your bike stand out with more power, beautiful design, and the unique Akrapovic sound.Optional headers fit also with Akrapovic standard (first fit) / BMW accessory Akrapovic silencer and on BMW M1000RR model.For perfect performance, throttle response and durability, special developed mapping is recommended.The product is developed and tested on EU vehicle specification. Non-EU fitment and performance may vary by marketplace and different vehicle specification.​THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE.