in fact, I wrote the wrong question
whether there are changes in this engine on ktm exc 450 between 2012 and 2013 ?
I heard that there are some changes , but I do not know exactly What are these
The ECU is simular to the 13' 450xcf and completely tunable, unlike the locked 12 & 13' EXC & WCW 450/500, they also have a completely differant map and come with thermostat ,fan, 4CS forks and slightly larger tank, oh yes and a one ride skid plate.