Roush Performance
Supercharger Upgrade Kit Dual Belt FEAD Phase 1-2 2005-2009 Ford Mustang
Mustang Supercharger Dual Belt FEAD Upgrades Dual Belt FEAD Phase 1 2005-2009 Mustang Supercharger to the Phase 2 system Increases engine power to 550 hp / 500 lb-ft Designed for use with manual transmission only Requires the Dual Belt Phase 1 2005-2009 Mustang Supercharger Kit (part #421102) Not C.A.R.B. approved -- not for sale in E.O. "green" states (including California) Part #421105
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