2015 Roush Stage 3 Mustang

ROUSH Stage 3 Mustang Produces 670 HP With Improved Supercharger

May 11, 2015
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ROUSH Performance is excited to announce final horsepower ratings for the all-new 2015 ROUSH Stage 3 Mustang. The RS3 is cranking out a heart-racing 670 horsepower and 545 lb-ft of torque to deliver the ultimate driving experience.

All 670 horsepower are created as a direct result of the powerful combination of Ford’s 5.0L V8 engine with ROUSH Performance’s dynamic new 2015 2.3L TVS supercharger.

2015 Mustang GT Supercharger

The ROUSH R2300 TVS supercharger is a roots-type, positive displacement supercharger that features twin four-lobe rotors that are twisted 160-degrees. By comparison, the original Eaton supercharger rotating assembly featured three lobes twisted 60 degrees. The fourth lobe and added twist, when combined with NEWLY redesigned air inlet and outlet ports, greatly enhance thermal efficiency, deliver higher volumetric capacity, enable higher operating speeds, creates a smoother, more efficient flow of air into the engine and has improved noise and vibration characteristics.

2015 Mustang 5.0L Roush Supercharger

Unlike turbo-charging, the ROUSH R2300 TVS supercharger provides instant throttle response and can generate increased power through the engine’s entire power band.

The new ROUSH Mustang’s generous power ratings impeccably compliment the RS3’s list of standard and optional features, including the ROUSH Quad-Tip exhaust (with optional ROUSH Active Exhaust System), standard single-adjustable coilover suspension system (or optional competition-tuned 3-way adjustable system), and the fierce new “R7” aerobody.

2015 Roush RS3 Mustang Stage 3

Jack Roush’s vision shines through the 2015 ROUSH Stage 3 Mustang’s perfect combination of 670 horsepower with meticulous handling and braking capabilities, providing the driver access to the robust attitude and performance of a racecar, while maintaining a comfortable and uniquely ROUSH driving experience.


ROUSH Performance is excited to announce final horsepower ratings for the all-new 2015 ROUSH Stage 3 Mustang. The RS3 is cranking out a heart-racing 670 horsepower and 545 lb-ft of torque to deliver the ultimate driving experience. All 670 horsepower are created as a direct result of the powerful combination of Ford's 5.0L V8 engine with ROUSH Performance's dynamic new 2015 2.3L TVS supercharger. The ROUSH R2300 TVS supercharger is a roots-type, positive displacement supercharger that features twin four-lobe rotors that are twisted 160-degrees. By comparison, the original Eaton supercharger rotating assembly featured three lobes twisted 60 degrees. The fourth lobe and added twist, when combined with NEWLY redesigned air inlet and outlet ports, greatly enhance thermal efficiency, deliver higher volumetric capacity, enable higher operating speeds, creates a smoother, more efficient flow of air into the engine and has improved noise and vibration characteristics. Unlike turbo-charging, the ROUSH R2300 TVS supercharger provides instant throttle response and can generate increased power through the engine’s entire power band. The new ROUSH Mustang's generous power ratings impeccably compliment the RS3's list of standard and optional features, including the ROUSH Quad-Tip exhaust (with optional ROUSH Active Exhaust System), standard single-adjustable coilover suspension system (or optional competition-tuned 3-way adjustable system), and the fierce new "R7" aerobody. Jack Roush's vision shines through the 2015 ROUSH Stage 3 Mustang's perfect combination of 670 horsepower with meticulous handling and braking capabilities, providing the driver access to the robust attitude and performance of a racecar, while maintaining a comfortable and uniquely ROUSH driving experience.

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2 Comments

  1. I am a little confused, the statement above said:
    All 670 horsepower are created as a direct result of the powerful combination of Ford’s 5.0L V8 engine with ROUSH Performance’s dynamic new 2015 2.3L TVS supercharger
    the question is . My son has a 2.3L eco boost 2017 focus RS is there a remote possibility that this will someday fit on my sons car. If so I am canceling the turbo charger up graded from Precision or Garrett’s turbo. We have not decided yet on which.

    Thank you in advance for a reply,

    AJ Davis

    • The Roush supercharger is only for the 5.0L V8 engine. Unfortunately, you can’t use it on your 2.3L Turbo. However, there are many upgrades for your Focus RS that will result in more power. Check out Mountune.

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