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Roush Single Belt Supercharger Phase 1 to 2 Upgrade Kit (05-09 GT)

Roush Mustang Single Belt Supercharger Phase 1 to 2 Upgrade Kit (05-09 GT) 421101

Regular Price $1,499.99
Sale Price $1,439.99
Manufacturer Part # 421101

Availability: Usually Ships in 7-10 Business Days
Product Code: 4276

If you have the Phase 1 kit, Roush's Single Belt Supercharger Phase 1 to 2 Upgrade Kit will blow the roof off your pony. It brings your total power up to 550 hp and 550 lb-ft of spinning torque. Free shipping on all orders from Stangmods. 421101.
Key Product Specs
  • If you've installed the Phase 1 Supercharger Kit from Roush and want to expand your power even further, Roush's Supercharger Single Belt Phase 1-2 Upgrade is just what your 2005-2009 Mustang GT needs. It boasts power gains of 75 HP and 115 lb/ft of torque over the phase 1 kit, providing for a total 550 horsepower and 550 lb/ft of torque.

  • Roush has specifically designed these superchargers to be easily upgraded by reusing a lot of the parts that you have installed from the phase 1 kit. The upgrade kit comes with an 80mm supercharger pulley, a GT500 fuel system upgrade and the flash voucher card to have your PCM tuned. This must be done using the Roush Diagnostic Tool and pass-thru device. If you dont have access to one, you can send your PCM to Roush and they will tune it for you!

    Key Specs
  • Phase 1 to Phase 2 upgrade
  • 550 HP and 550 lb/ft of torque
  • Only works with manual transmissions

    Fits 2005-2009 Mustang GT

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