  I study the phenomenology of new heavy neutral gauge bosons Z', predicted by
GUT-driven U(1)' gauge groups and by the Sequential Standard Model. BSM decays
into supersymmetric final states are accounted for, besides the SM modes so far
investigated. I give an estimate of the number of supersymmetric events in Z'
decays possibly expected at the LHC, as well as of the product of the Z' cross
section times the branching fraction into electron and muon pairs.
