https://www.youtube.com/watch?v=PLVU2hn4T94
Found this on YouTube give you a bit of idea what different exhausts sound like , heard a mt09 with a akrapovic and no DB killer in sounds awesome
Hi All yes I two have had concerns about a noise coming from the engine sounds like a timing chain vibrating at 5000 rpm I've done about 250 miles ,been back to dealers this morning and he says they all do it ,showed me on the demo model, He says its the EXUP valve in the exhaust ?not 100%...