I don't know about Evotech, it s more a general tuner.
Kelleners Sport is BMW oriented; what I found:
http://www.kelleners-sport.de/b2b/in...&vid=-1&cat=28
So, for 116i: Standard: 136hp/220Nm -> 163hp/264Nm;
For 118i: Standard: 170hp/ 250Nm -> 204hp/300Nm