Q: the 6g74 swaped ones are faster and you use the same gearbox the 6g74 is 3.5 and the 6g72 is 3.0
A: well, to discount what some one else said, the two engines are not geared differently. how ever i do agree with the different torque spectrums available. the shift points will be a little different. i am also curious to see if the computer would be able to recognize the different requirements, if it can connect to the systems completely.