2 in 1 full Exhaust system from QD. With maXcone muffler. This system is catalyzed with removable kat and db killer, and has E-mark and TUV. It is a 42>52 mm piping. We will dyno this exhaust soon on our XR1200 and show you the numbers compared with stock. We also are working hard to make a custom fuel map for it, to upgrade your ECM and let your bike drive beautiful and strong.