Roush Single Belt, Upgrade Phase 1-2 Kit for your 2010 Mustang
This Single Belt Phase 1-2 Upgrade kit will convert your Phase 1 kit ( 421107) to a Phase 2 Single Belt System. This will bring your 2010 Mustang GT to 550HP / 500 lb ft at the flywheel. This kit only works with manual transmissions
The main compnents of this kit include:
GT500 Fuel System Upgrade
80mm Pulley
Free calibration upgrade from Roush
Not CARB approved -- not for sale in California or other "green" states
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