I used the Bodis mid-pipe (Cat Replacement Pipe for 1290 SuperDuke GT 2016+ - GP Racing) & Rottweiler stage V ( Rottweiler Intake System - Super Duke 1290 R/GT (2014-2019)). If you do this plan on a Custon DynoJet Tune (A/F- 13.2 to 13.4). After these modifications the KTM GT settled right down. My 2017 still rocks & is a BMW GS Killer.. 82 51 295 276 118 263 258 210 186