Enhanced Electroweak Radiative Corrections in SUSY: Gluon-free   Observables
  Large top quark mass is responsible for the enhancement of the oblique radiative corrections in SUSY models. We present the analytical formulas for these corrections to the $W$-boson mass $m_W$ and to $Z$ $l^+ l^-$ coupling constants. The comparison with the result of the Standard Model fit is made. 
I.V.Gaidaenko, A.V.Novikov, V.A.Novikov (ITEP), A.N.Rozanov (ITEP and   CPPM), M.I.Vysotsky (INFN and ITEP)