Akrapovic Slip-On Exhaust BMW R12 nineT / R12 / R12 S / R12 G/S Features: No fuel remapping required For optimal performance J&P Cycles recommends the use of a fuel controller Ultra-lightweight exhaust is made from high-grade titanium Finished with a beautifully hand-crafted carbon-fiber endcap Power and torque levels are improved and throttle response is increased Sound is enhanced to deliver a deeper, sportier tone