  We analyzed the Rotation Curves of two crucial objects, the Dwarf galaxy
Orion and the low luminosity Spiral NGC 3198, in the framework of $R^n$
gravity. We surprisingly found that the no DM power-law f(R) case fits them
well, performing much better than $\Lambda$CDM Dark Matter halo models. The
level of this unexpected success can be a boost for $R^n$ gravity.
