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  • Roush 421389 Supercharger Upgrade Kit, Phase 2, 525/540HP to 625HP
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Roush 421389 Supercharger Upgrade Kit, Phase 2, 525/540HP to 625HP

by Roush

Available from these sellers.
  • 625 Horsepower and 525 lb-ft of torque (upgrade for previous ROUSH Supercharger 525hp, 540hp and 575hp kits/vehicles). Upgrade Kit Includes: 85mm Supercharger Pulley, 6-Rib Serpentine FEAD (Front Engine Accessory Drive) Belt, ROUSH Cold Air Induction System featuring a new 110mm MAF tube, larger clean air tube, open air box and washable/re-usable performance air filter
  • Unique ROUSH PCM Calibration (Mustang PCM must be shipped back to ROUSH)
  • Works with 2011-2013 Ford 5.0L Mustangs equipped with the ROUSH 5.0L supercharger kits producing 525, 540 or 575 horsepower
  • Includes ROUSH 3 Year/36,000 Mile ROUSH Parts Only limited warranty. VOID'S original 3 Year/36,000 Mile Powertrain/Drivetrain warranty. NOT approved for sale or installation in the state of California
  • Part # 421389
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Product Information

Technical Details
BrandRoush
Manufacturer Part Number421389
OEM Part Number 421389
  
Additional Information
ASINB00B9ESAL2
Shipping Weight15 pounds
Date First AvailableFebruary 1, 2013
  
Warranty & Support
Warranty, Parts: Parts
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Product Description

Upgrade the horsepower and torque of your 2011-2013 ROUSH supercharged 5.0L Mustang. The ROUSH Mustang Phase 2 - 625 HP Supercharger Upgrade Kit includes all of the necessary components to increase your ROUSH 525 HP, 540 HP or 575 HP Supercharged Mustang to 625 HP and 525 lb-ft. It comes with a new 85mm S/C Pulley, Shorter FEAD Belt, Cold Air Induction System, PCM Shipping Box and Installation Instructions. The ROUSH 2011-2013 5.0L Ford Mustang Phase 2 Calibrated Supercharger Kit is part of the TVS (Twin Vortices Series) line of superchargers developed by ROUSH that have raised the bar for performance and reliability. This is the same line that has been used and proven for years in ROUSH-built Mustangs and F-150. Hundreds of hours of research and testing go into the development of the ROUSH superchargers including testing in extreme environmental temperatures from -20 degrees up to and through 120 degrees Fahrenheit and at higher altitudes of 14,000 ft for quality and performance. Over 40 emissions tests to ensure that the Mustang still makes the same emissions and that all the Ford engine diagnostics functions as intended but this kit is currently not CARB approved. Engine dynamometer development allows for the re-map camshaft positions and many other aspects of the calibration. The ROUSH 2011-2013 Mustang Phase 2 - 625 HP Supercharger Upgrade Kit is part of the TVS (Twin Vortices Series) family line of superchargers developed by ROUSH that have raised the bar for performance and reliability. The TVS supercharger is the same line that has been used and proven for years in ROUSH-built Ford Mustangs. Easily upgrade the horsepower and torque of your 2011-2013 ROUSH supercharged 5.0L Mustang.

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