The EVO 2 case and the EVO 3 case are exactly the same, there is no difference at all, it is just that he doesn't have a clue on what he is talking about, the big difference on the external feature of the JL 1st version and the JL3 EVO 3 is the cooling head, now on the internal is the modified crank and the modified backplate which is a very effective way to make the engine way more powerfull.