That is a manifold that has been the topic of many a discussion on here before...
It would be used for a custom big turbo turbo application (T3 turbos in this case) since the mounting flange is of that pattern, i.e. footprint, stud spacing etc. It is not simply a replacement manifold for the one fitted as standard to our cars.
If you are aiming to go big turbo then yes, it will fit the car's engine but you would obviously be looking at major modifications from that point forward...
Hope that helps.
Cheers
Tim