They make less quoted horsepower because of the weird power restrictions/taxes(?) in japan. I've never really gotten the fully story, but rest assured, its making as much or more hp than the us versions. (Definatly more in higher rpm ranges, as they have 13g turbos stock, so i'm sure they are holding more boost).supermac said:why are you gonna buy a JSPEC engine? they make less horsepower than the US engines do. at least thats what i've heard.