Sanity check needed here. I ordered B30 parts and got them. Have the intake, TB, and DISA in my garage.
1 The intake manifold has a tag on it from seller saying 2002 530X (sold as a 3.0). But, this looks just like the on my 2002 325i wagon. I even measured the top dimensions of both manifolds and see no difference.
2 DISA I bought as a 3.0 DISA looks jsut like my spare 2.5 DISA (My spare 2.5 DISA fits 530X manifold too)
3 Throttle body has this part number 1354 7 502 445-05, which I found on web for fitting B30 AND B25
4 New TB gasket part number 13547504729 for a B30 TB measures 79.5 mm outer diameter only
I'll working on getting some photos posted too. Input appreciated.