I think a lot of us with the utec are wondering this. You guys have to have some more base maps than just one for a turboback exhaust....

 

I think the problem is the large differences in modifications, fuel used and lack of tuning by end-users.
The maps they put out are very conservative.
To get the most performance, you need to datalog...alot. Then you can start tweaking. Use the TBE map as a starting point.
If they posted up an aggressive tune map, somebody would probably load it and not have the correct mods or fuel and hurt their motor.
The biggest benifit of the Utec is the ease of self-tuning. No need for expensive dyno hours and over-priced tuners. Just data-log to get every possible effect on your engine and make small changes until you get maximum performance.