Racing Line Exhaust SystemBuilt using race-proven materials, the Racing Line gives the bike a striking appearanceThe muffler outer sleeve is constructed from carbon fiber, with a stainless-steel header and finished with a hand-crafted carbon-fiber endcap and muffler clamp, all creating a greater saving in weight from the stock systemThe system delivers extra power and torque all through the range, with a big increase at the lower end, along with enhanced sound for a more sporty and aggressive toneEasy to install and no remapping is necessary