TTW fitted this unit to my VJ22N. I have not yet bought the programmer, so it is on the standard map, but I can tell you it transforms the bike. So much smoother through the powerband, and so much more forgiving if you come out of a corner just a gear too high. A quick slip of the clutch and you’re away. It also makes the bike just that bit easier to ride as a road bike. I can not recommend this highly enough. Whatever you do to your RGV, do this first.