1024kb: Specifically for VAG TDi motor. PD injection version.
Maybe You could try yourselve, check out what's possible. There's software/flash available online for this.
https://www.ross-tech.com
https://www.ebay.com/itm/285032371960?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=Z0iZNZm-TJm&sssrc=2349624&ssuid=&widget_ver=artemis&media=COPY
https://tdi-tuning.com/en-gb/car/volkswagen/golf/16-tdi-104-bhp-105-ps-77-kw-250-nm-184-lbft-upto-2013/crtd4-twin-channel-diesel-tuning-box-chip
Good luck.