79mm Pulley for 2.3L TVS 5.0 Blower Kit
From VMP:
79MM pulley for Roush 2.3L TVS Supercharger kit on 2011+ 5.0L Mustang.Increases boost to ~10psi when stock enclosed airbox is used, +2.5 over stock.Supercharger kit comes from Roush with a 90MM pulley...