  We consider deformations of G-structures via the right action on the frame
bundle in a base-point-dependent manner. We investigate which of these
deformations again lead to G-structures and in which cases the original and the
deformed G-structures define the same instantons. Further, we construct a
bijection from connections compatible with the original G-structure to those
compatible with the deformed G-structure and investigate the change of
intrinsic torsion under the aforementioned deformations. Finally, we consider
several examples.
