Features/Benefits

The ROUSH Phase 2 Supercharger Upgrade Kit Builds On The Outstanding Performance Of Our Phase 1 Supercharger System By Adding Proven Core Components And Careful Calibration, For An Additional 57 Horsepower And 65 Lb-Ft Of Torque Over Our 670 Hp/ 545 Lb-Ft System (Pan 421823). The Result Is An Outstanding 727 Hp / 610 Lb-Ft Of Torque While Retaining The Daily Confidence You Expect From The Engineering Of ROUSH Performance. ROUSH Engineers Spend Hundreds Of Hours In The Laboratory, On The Dyno, And Out In The Field To Ensure The Components And Calibration Deliver Consistent Performance In All Conditions. The Upgrade Installs Easily With A Preset Plug And Play Fuel Pump Controller, Colder Heat Range Spark Plugs, And A Higher Boost 80 mm Supercharger Pulley. A ROUSH Diagnostic Tool (RDT) Reflash Voucher Is In The Box, And Your Upgraded Phase 2 Calibration Can Be Downloaded To Your Ecu In Minutes By Your Dealer. Included In The Kit: Fuel Pump Controller, 80mm Supercharger Pulley, (8) Nek Spark Plugs And, Rdt Reflash Voucher And Warranty. Note: This Kit Comes With An Extended Parts Warranty (ROUSH supplied Parts Only), Which Is Good For 3 Years Or 36, 000 Miles From The Date Of Retail Purchase. Note: If This System Is Installed On A 2015-17 ROUSH stage 3 Mustang, The Vehicle's Powertrain Warranty Will Be Voided.

• Engineered to Meet or Exceed OEM Specifications
• MADE IN AMERICA

• OEM Part Number: 421994
• Associated Years: 2015-2017
• Notes: EO #D-418-29 For 2015/16, EO #D-418-34 For 2017
• Item Quantity Size: 1 KT
• Shipping Dimensions (LxWxH): 11.6in x 8.4in x 7.2in
• Weight: 6 pounds

• CARB Exempt (Executive Order #EO #D-418-29 & #D-41)
• Tariff Code: 8414593000

• Keywords: Forced Induction Turbochargers & Superchargers, Supercharger Upgrade Kit