Akrapovic Racing Line Carbon fiber BMW G 310 GS 2017-21Power: +1. 8 kWat 8500 rpm Torque: +2. 7 Nmat 4900 rpm Weight: 4. 6 kg Built using race proven materials, the Racing Line gives the bike a striking appearance. The 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 system. The system delivers extra power and torque all through the range, with