Anyone use this system. They look very nice and claim to never need repacking. They have the 02 port made for the 2015 and 2016 Versys 650s. They say they don't need to be remapped. I'm sure remapping would be ideal, but with the 02 sensor, the ecu should adjust somewhat. My 2016 really runs well and the throttle response is excellent. I just hate how much heat the muffler puts out. The front of the swingarm and shock get really hot, especially on hot days.