FYI.

http://www.rambase.ru/2014/09/audi-a4-s4-engine-firmware.html?m=1

Hint: Because on these ECUs engine load is purely airflow based, you can add larger injectors and a larger MAF housing to make your life easier.
With a little bit of work on the remap you will have it running like a champ. Be careful, there is no MAP sensor anywhere on board so boost management is done through cylinder filling calculations.

Of course you should forget about the stock injectors, they are not even good enough for 230hp. Get something bigger but with low latency and a 3bar FPR along with an upgraded fuel pump to handle the extra flow needed.
The AEB engine can easily handle what you want of it, if it is in good condition. But you have to respect it to get there too.