  We study a set of exclusive $B$ and $B_s$ decay modes induced by the rare $b
\to s \nu \bar \nu$ transition in the RS$_c$ model, an extra-dimensional
extension of the standard model with warped 5D metric and extended gauge group.
We emphasize the role of correlations among the observables, and their
importance for detecting the predicted small deviations from the standard model
expectations.
