So do I: a 2016 XDiavel S and 2020 R3 R, as well as a 2014 Vmax. The three bruisers (-: The XDiavel is like a pitbull on a coiled leash - it kicks 4ss, anything, every time. Its highly strung manner makes it the preferred choice for a spirited Sunday morning breakfast run (even when surrounded by sports bikes) rather than a more relaxed Sunday afternoon ride out. The Vmax remains my all-out favourite, though, and I cannot really put my finger on why. It only has five gears but, therefore, also has longer legs. And it sounds sooo good on the trot - sharing the 65-degree V4 configuration and firing order (1-3-2-4) with the Aprilia RSV4/Tuono. The Vmax pips the Rocket as well, by the way.
I run a K&N® air filter, Akrapovič® x-pipe (between the headers and exhaust cans), Gurued Gear® ECU and Bazzaz® fueler + quick-shifter on the Vmax. I still use the standard exhaust cans. And I installed the 8" OEM rear rim, so it wears a 240 rear tacky like the other two. Brutus.
BMC® air filter, Arrow® slip-on, RapidBike® Race fueler and TransLogic® quick-shifter on the XDiavel. Pazzo. I run RapidBike® Race fuelers on my Panigale and Monster as well, so too on my KTMs (RC8-R and Adventure S). Plug-and-Play and forget them - they do their magic even with narrow-band oxygen sensors.
Standard OEM air filter, CW slip-on, Penner's map (tweaked a bit) and OEM quick-shifter on the R3R. I seriously contemplated adding the TTS supercharger, but it simply does not offer enough bang for the (sheer amount of) buck(s). I have actually grown quite content with the Rocket as I have it now, truth be told, and with the tweaked map, it will break the rear wheel loose in 3rd. Good exhaust colour too. The Hulk.
Keepers, all three of them.