I have a stage 2:
VWR600 intake
Milltek downpipe without cat
Milltek non resonated catback
DVX Engine software stage 2
DVX DSG software
This is my dyno:
He has a stage 3 500hp setup, the specs are in the first picture.
Another friend has a stage 3 ST with a TTE470 turbo, CTS intercooler, CTS intake, Custom made downpipe and catback, DVX software on engine and DSG. He has 431hp/561nm, but the results are limited on his request. Normally this would make around 470hp/580nm. You can see the results on this link:
https://www.facebook.com/pg/DVX-Per...51/photos/?tab=album&album_id=830565450431427
Please dont forget that the 2wd cupra weighs a lot less then your M135i (1366kg vs 1515kg both 2wd and automatic gearboxes) and the 4wd is around 1470kg... So still lighter then your M135i?