Originally posted by Vapor
no, it doesnt have to be tuned and tuned. There is more to tune than a VAFC can do.
I can tune ignition timing in 300 rpm increments, fuel enrichment, compensate for very large injectors (I have made 900cc injectors idle and run like stock on a n/a motor) vtec engagement, nitrous fuel enrichment, nitrous ignition retard, a/c shut off, idle speed, disable needless check engine lights, add a shift light, and I can optionally add datalogging and a three stage rev limiter.
There are more things to tune and more power can be had from it - but once it's tuned, you don't have to even think about it 
I was not trying to say it needs to be tuned multiple times... I was saying that it has to be tuned by a hondata professional & done right which may take more then just a few dyno runs.
Anyways, oh well.. Hondata is great if you can afford it...