everyone can expect more from the famous Japanese Tuners but keep in mind nissan designed this cars ecu to be "hackproof" they what it to stay as close to stock as possible for a while I think the reason is for reliability. they have put alot of time and design into these cars but I dont think they will be capable of making the power the R32, R33, R34, made. but the will still be fast as ****. I think that the when you compare the v6 to the I6 you will see that the I6 is going to be more reliable (not to mention simpler) the I6 has less moving parts so that is less parts that can fail.