i think a big point that is being missed on this topic is that the EVO X has only been out in the states 4 months, not only that this is a brand new engine. i also don't get the big debate about who running race fuel to who isn't running race fuel. IMO race fuel may increases HP slightly but the reason why we use race fuel is to be able to run higher boost....to me its simple low boost ( just over stock) = pump gas and maybe a gubsy
, high boost = race gas