An inlet panel for a supercharger comprises a first portion, the first portion comprising one of a perforated material, a micro-perforated material, and a mesh layer. The inlet panel also comprises a second portion, the second portion comprising a recess and an axis. The recess is bordered in part by a side wall and a back wall. The first portion is offset from the back wall in the axial direction. The side wall has an edge located a distance away from the back wall in the axial direction.