Hi guy's Just fitted a set of Dyna Green 3ohm coils today ,WoW this has to be the best upgrade to our bikes ,runs smoother ,starts first press of the button ,idles better ,I had MikesXs black coils 3ohm on for about 7000km ran ok better than originals ,I don't know if it is coincidence but i don't have a rattle (like timing chain slap ) any more ,plugs were black and wet when i pulled them out after a run to ulladulla and back.Maybe coils were not firing properly