Roush 422337 Phase 2 Supercharger 810 HP for 2024-26 Mustang GT/Dark Horse 5.0L

Vehicle Fitment

• 2024-2026 Ford Mustang GT / Dark Horse (5.0L V8, RWD) - coverage confirmed through 2025; 2026 supported by aftermarket sources.

Features

• Delivers 810 horsepower and 630 lb-ft of torque from the factory 5.0L V8 engine
• Phase 2 supercharger system incorporating Eaton TVS R2650 technology for high efficiency and power
• Dual front-inlet, dual throttle bodies retaining stock 80 mm throttle bodies for improved airflow
• Inverted supercharger design with dual high-capacity intercoolers for optimal heat management
• Includes high-flow dual-cone fuel injectors and billet fuel rails for maximum fuel delivery
• Custom front end accessory drive (FEAD) and wiring plug-and-play for streamlined installation
• 50-state emissions legal, CARB Executive Order D-488-65 compliant, SEMA certified
• Designed specifically for the S650 Mustang GT / Dark Horse platform - not a universal fit

Specifications

• Part number: 422337 (Roush Performance)
• Output: ~810 hp and ~630 lb-ft torque (with 93-octane fuel) on stock engine components
• Engine: Ford 5.0L Coyote V8 - GT and Dark Horse trims
• Drivetrain: Rear-Wheel Drive (RWD) only
• Platform: Ford Mustang S650 (model years 2024-2026) - verified through 2025
• Includes full intake and supercharger system; intake sold separately in some cases
• Installation difficulty: Advanced; estimated 10-12 hours depending on shop and tools

Included Components

• 1x supercharger assembly (R2650, dual throttle bodies, dual front inlet)
• 1x high-capacity intercooler system (dual coolers) with custom piping and hoses
• 1x high-flow dual-cone fuel injector set with billet fuel rails
• 1x custom FEAD bracketry and belt drive components
• 1x tuning calibration and plug-and-play wiring harness
• Installation hardware kit and instructions

Product Description

The Roush 422337 Phase 2 Supercharger transforms your 2024-2026 Ford Mustang GT or Dark Horse 5.0L into a high-performance powerhouse, delivering approximately 810 horsepower and 630 lb-ft of torque. Engineered with Eaton TVS R2650 internals, a dual throttle body design, and high-capacity intercoolers, this complete kit is built for both street and track driving without sacrificing emissions compliance.

Designed exclusively for the S650 Mustang platform, this direct-fit system integrates seamlessly with factory components - retaining the stock 80 mm throttle bodies, using existing mounts, and requiring no major modifications to the hood or K-brace. With plug-and-play wiring and a full tune included, it simplifies installation while delivering exceptional performance and drivability.

Whether you're running a clean street build or prepping for the track, the Roush 422337 provides high-end power, durability, and fitment precision. Given its full emissions compliance and factory-level engineering, it's ideal for serious Mustang enthusiasts who demand performance and reliability in one complete package. Ensure your vehicle is specifically the 2024-26 GT or Dark Horse trim with the 5.0L V8 before ordering.