Well even after a search, not much comes up

Upsolute, GIAC, Powerchip, Reichert

Upsolute claims 232hp (from the 193 european standard)
http://www.upsolute.com/db/ger/eng_list.php

GIAC I think claimed more but I can't find the website I had (european)

Powerchip claims max 203hp
http://www.powerchipgroup.com/intera...sp?pid=Mer0154

Reichert claims 230hp (from 193 european standard)
http://www.chiptuning24.info/index.php?ID=12&TC=0423

which one the best, can they be reprogrammed when you get pulley or other mods?

Etienne