I have the R34 skyline GTR best album from japan and as far as i can tell they didn't change the sump or turbos they are the same as the normal v-spec and m-spec models i have photos of all the differences between the v-spec and v-spec II and it just shows the change to the black interior the carbon bonnet with NACA duct, larger N1 rear brakes the foot pedals are different more of a race style, clear indicators, plastic end tanks on the radiator for the v-spec II instead of metal, the MFD on the v-spec II has a oil pressure reading instead of throttle %, slightly different colour on the centre console, different seatbelts and buckles, different mirror controllers and the v-spec II did not get the sound deadening material on the underside of the bootlid and no cover over the rear windscreen wiper motor apparently was a cost saving thing and the v-spec II is 10 kg heavier.