2024-2025
2015-2023
2010-2014
2005-2009
1999-2004
1994-1998
1979-1993
Installation Time
(approx) 4 Hours
Difficulty Level:
Light to Moderate mechanical skill required.
Installation Guides
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Roush Phase 1 to Phase 2 Supercharger Upgrade Kit; 727 HP (15-17 Mustang GT)Find parts that fit my vehicle
Item 390770
$1,169.99
12 Reviews
13 Answers
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-10% $1,169.99 Was $1,299.99
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Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- Roush Phase 1 to Phase 2 Supercharger Upgrade Kit
- Upgrade to 727 Horsepower and 610 lb-ft of Torque
- Includes 80mm Pulley, NGK Spark Plugs and Plug & Play Digital Fuel Pump Controller
- Roush PCM Flash Voucher Card Included
- 3 Year / 36,000 Mile Limited Warranty on Roush Parts Only
- Fits 2015-2017 GT Mustangs with a 670HP Roush Phase 1 TVS Supercharger Kit
| Brand | Roush |
| Type | Upgrade Kit |
Description
More Horsepower and Torque! Increase the power and performance of your current 670 HP Roush R2300 Phase 1 Supercharger to an impressive 727 horsepower and 610 lb-ft of torque with a Phase 2 Supercharger Upgrade Kit.
Kit Includes. The Roush Phase 1 to Phase 2 Supercharger Upgrade Kit includes a new 80mm S/C Pulley, a preset plug and play digital fuel pump controller, cooler range NGK spark plugs, ROUSH PCM Flash Voucher Card and installation instructions.
Roush Performance Quality - Guaranteed. Roush is known for a rich tradition of excellent racing performance engineering at the highest level of OEM quality and design. This Supercharger upgrade kit features a 3 Year/36,000 Mile Parts limited warranty (ROUSH Supplied Parts Only).
Upgraded ROUSH PCM Calibration. ROUSH® PCM calibration is a success of engineering that maximizes the power of the system. ROUSHcharger owners will receive a ROUSH® PCM Flash Voucher Card, which is used to obtain the specific calibration needed for your Mustang and requires ROUSH Diagnostic Tool (RDT) software and a J2534 Pass-Through device to upgrade your PCM (software and pass-through device not included). If you don't have access to a pass-through device, you have the option of sending your PCM back to Roush, where they will flash your PCM for an additional $100 fee.
Application. This ROUSH Phase 2 Supercharger Upgrade Kit works with both manual and automatic 2015-2017 GT Mustangs equipped with the Coyote 5.0L DOHC 4 valve V8 engine and a ROUSH R2300 Phase 1 TVS Supercharger that produces 670 horsepower. This voids optional Roush limited powertrain/drivetrain warranties.
Kit Includes. The Roush Phase 1 to Phase 2 Supercharger Upgrade Kit includes a new 80mm S/C Pulley, a preset plug and play digital fuel pump controller, cooler range NGK spark plugs, ROUSH PCM Flash Voucher Card and installation instructions.
Roush Performance Quality - Guaranteed. Roush is known for a rich tradition of excellent racing performance engineering at the highest level of OEM quality and design. This Supercharger upgrade kit features a 3 Year/36,000 Mile Parts limited warranty (ROUSH Supplied Parts Only).
Upgraded ROUSH PCM Calibration. ROUSH® PCM calibration is a success of engineering that maximizes the power of the system. ROUSHcharger owners will receive a ROUSH® PCM Flash Voucher Card, which is used to obtain the specific calibration needed for your Mustang and requires ROUSH Diagnostic Tool (RDT) software and a J2534 Pass-Through device to upgrade your PCM (software and pass-through device not included). If you don't have access to a pass-through device, you have the option of sending your PCM back to Roush, where they will flash your PCM for an additional $100 fee.
Application. This ROUSH Phase 2 Supercharger Upgrade Kit works with both manual and automatic 2015-2017 GT Mustangs equipped with the Coyote 5.0L DOHC 4 valve V8 engine and a ROUSH R2300 Phase 1 TVS Supercharger that produces 670 horsepower. This voids optional Roush limited powertrain/drivetrain warranties.
Fitment:
DetailsRoush 421994
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) Preset Plug and Play Digital Fuel Pump Controller
- (8) NGK Spark Plugs
- (1) 80mm Supercharger Pulley
- (1) ROUSH PCM Flash Voucher Card
- Installation Instructions
Tech Guides:
4.8
Customer Reviews (12)
Questions & Answers (13)
Will It Fit My Mustang
- GT - 15, 16, 17
This Roush Phase 1 to Phase 2 Supercharger Upgrade Kit is specifically designed for 2015-2017 GT Mustangs with 670hp Roush TVS Supercharger Kit installed.
