With resolving the 1.55bar boost limit, we are able to recalibrate the ecu to a high standard to complement our TTU510S......not only did we resolve the boost limit, we have also done this correctly. The ECU can only request 2550mbar from factory. To resolve this we had to recode the ECU to be able to request 3000mbar not only did we do that but the throttle body also stays open 100%. We have noticed with several tuners that the ECU is never open 100% on wide open throttle which in turn is not healthy for the engine and the tune is just not right.
This has taken us some time to nail this but we got there in the end with great results.
Here is a log showing requested and actual boost.

We also do TCU tunes to suit to your needs where possible.