Roush Single Belt, upgrade Phase 1-2 (05-09)

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Roush Single Belt, Upgrade Phase 1-2 ( 2005-2009 Mustangs)

This supercharger upgrade allows your current kit of the single belt Phase 1 for your manual transmission 2005-2009 Mustang GT supercharger ( part # 421099) to upgrade to a Phase 2 system. This system boost the total power up to 550hp and 550 lb.ft to the flywheel.

The main compnents of this kit includes:

  • GT500 Fuel system upgrade
  • 80MM Pulley
  • Free calibration upgrade from Roush


Not CARB approved -- not for sale in California or other "green" states






Additional Details

35.00 (in)
18.00 (in)
15.00 (in)

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