Roush 705HP F-150 Supercharger Kit Red Edition (422349) - 2021-2026 Ford F-150 5.0L V8
Turn your 2021-2026 Ford F-150 5.0L V8 into a 705-horsepower truck with one of Roush Performance's most proven power upgrades, now finished in an exclusive limited-run Roush Red. The Roush 705HP F-150 Supercharger Kit Red Edition delivers the same supercharger system, power output, engineering, drivability, cooling capability, and available warranty protection that have made the standard Roush kit a popular choice for F-150 owners, but with a distinctive Red head unit created to celebrate two major milestones: America's 250th anniversary and Roush's 50th anniversary.
This is not a new or experimental performance package underneath the Red finish. Roush has retained the established performance combination behind its 705-horsepower F-150 package. The Red Edition changes the appearance under the hood without changing the proven formula behind it. The result is a limited-run supercharger package for owners who want serious F-150 performance along with an engine bay that immediately stands apart.
Availability of the Red Edition is limited. There is no established date for another production run once the current supply is exhausted, making this version especially appealing for F-150 owners who want the proven Roush supercharger package with a more exclusive appearance.
705 Horsepower - A True Forced-Induction Upgrade
The Roush Supercharger Kit transforms the naturally aspirated 5.0L V8 by physically increasing the amount of air entering the engine. Rather than relying solely on calibration changes to optimize the factory combination, the Roush system adds forced induction to dramatically increase the engine's performance potential.
Roush rates the system at 705 horsepower at the crank, representing an increase of approximately 305 horsepower. Dyno testing has produced 564 rear-wheel horsepower and 508 lb-ft of rear-wheel torque when calculated with a 20% parasitic drivetrain loss. That level of output gives the F-150 an entirely different performance character while retaining the functionality that makes the truck useful every day.
At the center of the system is the Roush R2650 TVS supercharger. Its 2.65-liter Roots-type architecture uses twin four-lobe rotors featuring a 170-degree twist. The design promotes efficient airflow while helping reduce vibration and noise. More importantly for the driver, the positive-displacement design provides immediate throttle response and power throughout the operating range without waiting for the spool-up associated with a traditional turbocharger.
Power Without Giving Up Your F-150
Adding more than 300 horsepower is impressive, but making that power work in a truck that may be driven every day, used on the highway, or called on to perform truck duties requires much more than a large peak horsepower number. Roush engineered this package so owners do not have to sacrifice the characteristics that made them choose an F-150 in the first place.
The factory OEM drive modes remain functional after installation. Normal, Sport, Tow/Haul, and the truck's other supported factory driving functionality are retained, allowing the F-150 to continue adapting to different driving situations. Vehicle top speed is also left unaltered.
The result is a supercharged F-150 designed to deliver significantly more power without turning the truck into a single-purpose vehicle. Whether the truck is being driven around town, cruising on the highway, towing, or putting its 705 horsepower to work, the Roush system is engineered around both performance and everyday usability.
R2650 TVS Supercharger Technology
The Roush R2650 TVS is a 2.65L Roots-type positive-displacement supercharger engineered to provide immediate boost response and a broad powerband. Twin four-lobe rotors utilize a 170-degree twist to move air efficiently through the system while helping minimize unwanted vibration and noise.
Unlike a turbocharger system that relies on exhaust energy and must build turbine speed before reaching its full boost potential, the mechanically driven R2650 responds directly to engine operation. That means immediate throttle response and accessible power throughout the RPM range, characteristics particularly well suited to a performance street truck.
Engineered Cooling for Real-World Performance
Making horsepower is only part of engineering a complete forced-induction system. Managing the additional heat generated under boost is critical when that performance is expected to remain consistent during extended driving, towing, high ambient temperatures, and repeated acceleration.
Roush equipped this generation of the F-150 supercharger package with a radiator that is 107% larger than earlier versions, roughly doubling cooling capacity. The increased cooling capability is designed to help the system maintain performance under demanding operating conditions instead of allowing heat buildup to undermine the additional power.
The cooling system is backed by extensive validation. Roush subjected the supercharger package to more than 900 hours of dynamometer testing and evaluated cold-start operation at temperatures down to -20 degrees Fahrenheit. This development process helps demonstrate that the system was engineered around more than a single peak dyno pull.
Supporting Hardware Designed for Forced Induction
Roush complements the R2650 supercharger with supporting components specifically selected to handle the additional demands created by forced induction.
A Roush-exclusive forged aluminum crankshaft damper uses a viscous design to manage the increased torsional demands placed on the engine. By controlling these forces, the damper is designed with engine longevity in mind while supporting the additional output of the supercharged combination.
The package also utilizes spark plugs specifically selected for forced-induction operation. These plugs are specified to help reduce the risk of pre-ignition under boost, providing another important supporting component for a complete supercharger system rather than simply adding the head unit itself.
Limited-Run Roush Red Edition
The Red Edition takes the proven Roush 705HP F-150 supercharger package and gives it an unmistakable appearance under the hood. The exclusive Roush Red head unit was created as part of a limited production run celebrating America's 250th anniversary and Roush's 50th anniversary.
Performance has not been changed for the Red Edition. It uses the same battle-proven R2650 supercharger architecture, produces the same 705-horsepower output, retains the same engineering and supporting hardware, and carries the same available warranty protection as the established package. The difference is visual, giving the supercharger a distinctive finish that immediately identifies this special version when the hood is opened.
Roush has not established whether this color will become available again after the limited production run. Once the current Red Edition supply is sold out, there is no set date for another release.
Extensively Tested by Roush Performance
Roush brings 50 years of performance engineering experience in Livonia, Michigan to the development of this supercharger package. The system has undergone more than 900 hours of dyno testing along with cold-start testing down to -20 degrees Fahrenheit, helping validate performance across conditions far removed from ideal dyno-room temperatures.
That testing, combined with the increased cooling capacity, forced-induction-specific spark plugs, viscous crankshaft damper, and proven R2650 TVS supercharger, makes this a complete engineered package rather than a collection of unrelated performance parts.
Available 3-Year / 36,000-Mile Limited Powertrain Warranty
One of the most important advantages of the Roush F-150 Supercharger Kit is the available warranty protection. When the system is installed by an ASE-certified technician and all applicable warranty requirements are met, the package is backed by a 3-year / 36,000-mile limited powertrain warranty.
This warranty support provides additional confidence for owners who want substantial forced-induction performance without treating their late-model F-150 like an unsupported experimental build. Warranty coverage remains subject to Roush's applicable terms, conditions, installation requirements, and limitations.
Features
- Transforms the 2021-2026 Ford F-150 5.0L V8 into a 705-horsepower supercharged truck
- Approximately 305 horsepower increase at the crank
- Dyno-proven 564 rear-wheel horsepower
- Dyno-proven 508 lb-ft of rear-wheel torque
- Rear-wheel figures calculated using a 20% parasitic drivetrain loss
- Roush R2650 TVS supercharger
- 2.65L Roots-type positive-displacement supercharger design
- Twin four-lobe supercharger rotors
- 170-degree rotor twist promotes efficient airflow while reducing vibration and noise
- Immediate throttle response and power delivery throughout the operating range
- No turbocharger spool-up delay
- 107% larger radiator than earlier versions
- Approximately double the previous cooling capacity
- Cooling system designed to help maintain performance under demanding loads
- More than 900 hours of dyno testing
- Cold-start tested at temperatures down to -20 degrees Fahrenheit
- Roush-exclusive forged aluminum crankshaft damper
- Viscous crankshaft damper helps manage increased torsional demands
- Forced-induction-specific spark plugs help reduce the risk of pre-ignition under boost
- Retains OEM drive modes
- Retains Normal, Sport, Tow/Haul, and supported factory driving functionality
- Vehicle top speed remains unaltered
- Engineered to retain everyday F-150 drivability
- Suitable for performance driving, highway use, towing, and demanding operating conditions
- Exclusive Roush Red supercharger head unit finish
- Limited production Red Edition
- Created to celebrate America's 250th anniversary and Roush's 50th anniversary
- Same proven performance, engineering, and available warranty protection as the established Roush 705HP package
- Engineered by Roush Performance in Livonia, Michigan
- Available 3-year / 36,000-mile limited powertrain warranty when applicable requirements are met
Fitment
- 2021 Ford F-150 5.0L V8
- 2021 Ford F-150 Tremor 5.0L V8
- 2022 Ford F-150 5.0L V8
- 2022 Ford F-150 Tremor 5.0L V8
- 2023 Ford F-150 5.0L V8
- 2023 Ford F-150 Tremor 5.0L V8
- 2024 Ford F-150 5.0L V8
- 2024 Ford F-150 Tremor 5.0L V8
- 2025 Ford F-150 5.0L V8
- 2025 Ford F-150 Tremor 5.0L V8
- 2026 Ford F-150 5.0L V8
- 2026 Ford F-150 Tremor 5.0L V8
Fitment Notes
- Designed for 2021-2026 Ford F-150 models equipped with the 5.0L V8 engine, including applicable Tremor models.
- F-150 models equipped with Pro Power Onboard require Roush Dual Alternator Supplemental Kit #422310.
- California compliance applies to 2021-2023 model years only.
- 2021-2023 applications are approved for use in California and other states requiring an Executive Order under CARB EO# D-418-47.
- California compliance is not stated for 2024-2026 model years.
- Available 3-year / 36,000-mile limited powertrain warranty requires installation by an ASE-certified technician and remains subject to Roush warranty terms, conditions, and eligibility requirements.
Why Choose the Roush 705HP Red Edition?
The Roush Red Edition is built for the F-150 owner who wants a substantial increase in performance without sacrificing the everyday functionality of the truck. Instead of relying solely on software calibration to extract incremental gains from the naturally aspirated engine, the Roush system fundamentally increases the 5.0L V8's performance capability by adding a proven positive-displacement supercharger.
More importantly, the system has been developed as a complete package. The 705-horsepower output is supported by increased cooling capacity, forced-induction-specific spark plugs, a Roush-exclusive crankshaft damper, extensive dyno and cold-weather testing, retained factory drive modes, and available limited powertrain warranty protection.
The Red Edition adds one more reason to choose this particular version. Underneath the exclusive Roush Red finish is the same established supercharger system that has already built its reputation in F-150 applications. The performance is proven. The engineering remains unchanged. The Red head unit simply makes sure the truck looks as special under the hood as its 705-horsepower output feels from behind the wheel.
With production limited and no established date for another Red Edition run, part number 422349 offers a unique opportunity to combine proven Roush F-150 supercharger performance with a commemorative appearance celebrating two significant anniversaries.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
