Umbau eines 2.5 TDI Motor

hello,

had a engine failure last week on my 2.5 TDI A4, manufactured in 1998 (not Quattro), engine code: AFB, which has 150 horsepower.

Now to my question: who can tell me what changes I would need to make if I were to install the V6 2.5 TDI with 180 hp from the aftermarket and install it? The engine itself is the same, but do all the connections, such as for the exhaust, also fit? If I were to get it, would it be best to get it with all the electronics, assuming that it will fit? (e.g., control unit)

Thank you for your help...

with best regards,

thorsten