hey all 

I have a 8D0907558DA ECU which is on a DBC "AJL" 1.8T

Due to such scarce info, I've been told all sorts of things. From my latest finding which aren't really that strong, it seems to me this is  ME3.8.2 ECU.

This leads me on to options available:
If it is ME3.8.2, should I:
1) Make an effort to convert the car to ME7.x
2) PnP ECU with ME3.8.3
3) PnP ECU with ME 5.9.2 (is this even possible with existing harness/pinouts?)

I also notice with my current ECU a lot of blocks are simply not available (simple things such as CF) and completely different than what the community or VCDS documentation advises. It makes it very difficult to log things more than a conventional narrowband ME ECU.

I currently run a GT2871R, but planning on going bigger.
Fueling/tuning setup is currently:
415cc@4bar
3" OD VR6 MAF Housing
1.8T (same PN as 'late' AEB) MAF element