  New coloured scalars in the Manohar-Wise model give sizeable contributions to
the Electric Dipole Moment (EDM) of the neutron through one-loop and two-loop
diagrams, computed in Reference [1]. Contributions from neutral scalars cancel
out for degenerate values of the masses, whose difference is related to the
oblique parameters $S$ and $T$. The Manohar-Wise model is able to explain the
recent value of the $W$-boson mass published by the CDF collaboration. We show,
however, that the case of total degeneracy of masses is strongly disfavoured in
this model, whose parameter space is substantially reduced when considering
also unitarity bounds.
