85MM pulley for Roush 2.3L TVS Supercharger kit on 2011+ 5.0L Mustang.
Increases boost to ~8.5psi when stock enclosed airbox is used, +1 over stock.
Supercharger kit comes from Roush with a 90MM pulley that makes 7-8psi.
No tuning required.
May be used with pump gas.
*Ti-VCT settings will change boost, quoted boost numbers based on VMP Tune.