as RR says if it works dont fix it!
Highly specialised mechatronics unit that even has issues when std!
increased rpm limit of debateable benefit in a high torque 4 pot turbo, as well as that its an extra 1100rpm

, force squares with revs (or something like that) so the increased forces for an increase of that size would blow your bottom end I'd suspect.
Quicker gearchange , does the DSG really need that?
clutch [pack and quaiffe would seem a much more tried and tested way of increased performance.
Leave this well alone for now imho
[or if moneys really burning a hole in your pocket , put the ED30 back to std , sell it and get a cheap(er) R32 and add the HPA turbo kit.
At the cash we are talking about the end result is going to be pretty special]