i went with the oem ducati filter,i dont trust k&n even on cars etc. the oil i used is motul 300v 15-50. i can tell the difference with the motul because it shifts with alot less effort on the shifter, at least thats what my foots says lolHas anyone changed the oil in this beast yet ? I’m looking at doing mine at 5k and I see k&n makes a filter which looks much better than factory paper Ducati filter for half the price. Also , if anyone has done this service did you use the shell advance 4t 15-50? Any feedback would be appreciated .