  Recently, a one-parameter deformation of the Maldacena-Nunez dual of the N=1
SYM theory was constructed in hep-th/0505100. According to the Lunin-Maldacena
conjecture, the background is dual to pure N=1 SYM in the IR coupled to a KK
sector whose dynamics is altered by a dipole deformation that is proportional
to the deformation parameter gamma. Thus, the deformation serves to identify
the aspects of the gravity backgrounds that bear the effects of the KK sector,
hence non-universal in the dual gauge theory. We make this idea concrete by
studying a Penrose limit of the deformed MN theory. We obtain an exactly
solvable pp-wave that is conjectured to describe the IR dynamics of KK-hadrons
in the field theory. The spectrum, the thermal partition function and the
Hagedorn temperature are calculated. The Hagedorn temperature turns out to be
independent of the deformation parameter.
