E90/92 N53 325i upgrade to 330i is just a simple inlet manifold swap and software upgrade
N53B30A 325i does not have any DISA valves in inlet manifold and is rated at 160kw. There are 3 types of inlet manifolds – no disa (160kw, marked UL), one disa and two disa valves (200kw, marked OL, sometimes it is called stage3 inlet manifold)
Part numbers for the inlet manifold with 2 disa valves – 11617593004
It does not have the EGR port so that has to be blocked on exhaust manifold side. Disa valve connectors are already in the stock 325i wiring harness, not connected by default.