ultimate offers a lot more control, much better resolution, etc... the regular emanage, as seen in the greddy turbo kits and such is a completely different beast, sharing not much more than a name. It simply doesn't have the capabilities to be an effective tuning means, much like the vafc.

There's a reason you never seen anyone seriously trying to tune a turbo honda with a vafc or regular emanage, they lack the ability to do it well.