  In this work we overhaul previous studies of Flavor Changing Neutral Current
processes in the context of the Reduced Minimal 3-3-1 model(RM331). We sift the
individual contributions from the CP even scalars and the $Z^{\prime}$ gauge
boson using two different parametrizations schemes and compare our results with
current measurements. In particular, studying the $B^{0}-\bar{B^{0}}$ meson
system we find the most stringent bounds in the literature on this model,
namely $M_{Z^{\prime}} \gtrsim 3326$~GeV, $M_{V^{\pm}} \gtrsim 910$~GeV,
$M_{U^{++}} \gtrsim 914$~GeV and $m_{h_2^0} \gtrsim 889$~GeV.
