this is all included in the EDS company phase 2 package. Thats a german tuning company specialised in opel. http://www.eds-motorsport.de
that manifold, sportcat + remap = 1250 euro for 170hp and +25nm
add schrick cams and dbilas high flow air system and u'll be up for 190hp
they sell that all that in phase 4 for 3350 euro.
I recently bought a 2.2se with 35k miles on it and im so fucking glad that i live in belgium so i can go get phase 2 + dbilas highflow for a good price cuz EDS is like 150 miles from me and will give me decent amount of hp without even having to do any high costing and deep engine mods like ported head, tb's or cams 🙂