I'm thinking you might need to use the search function.
LOTS of threads about Uprev.
Also talk to the traders on here regarding other options. General rule of thumb for tuning on any car is choose your tuner first then ask them for advice on what system to use for best results.
I used Abbey Motorsport and Uprev for my supercharged Zed and would highly recommend them.
There are others that people regularly use on here - Horsham Developments, RS tuning, etc...
What Zed do you have? DE, HR? etc
What Turbo kit have you fitted?
What supporting mods do you have?
All of this info would help.
Also, pop into the introductions part of the forum, say hello and tell us a bit about yourself and your car.