Whipple W235RF 3.8L Gen 6 Supercharger Upgrade Kit (20202022 Shelby GT500) WK-2550-38
Overview
The Whipple W235RF 3.8L Gen 6 Supercharger Upgrade Kit is the ultimate bolt-on power solution for the 20202022 Shelby GT500, delivering massive gains while remaining fully 50-state legal. Designed as a direct upgrade to the factory supercharger, this system eliminates the airflow and intercooler limitations of the stock unit, unlocking safe, repeatable power on pump gas.
With 43% more displacement than the factory 2.65L unit and Whipples patented dual-core, dual-pass intercooler technology, this Gen 6 system dramatically lowers charge air temperatures while flowing substantially more air. The result is industry-leading performance with factory-level drivability and reliability.
Performance Highlights
- Capable of supporting over 1000 horsepower with proper engine setup
- Proven to produce 1035 HP on 93 octane with a stock engine and exhaust
- 275 HP gain over the factory GT500 supercharger
- Front-entry Gen 6 W235RF 3.8L twin-screw supercharger
- Exclusive 3x4 rotor combination for increased airflow and efficiency
- Oversized Crusher 150mm inlet system
- Massive dual-core, dual-pass intercooler for unmatched cooling
Advanced Cooling & Airflow Design
At the heart of this system is Whipples industry-leading intercooling strategy. The discharged air passes through each intercooler core twice, effectively doubling cooling capacity compared to the factory setup. Dual 1-inch inlet ports and dual outlets allow nearly twice the intercooler water flow of the stock core.
The billet 6061-T6 supercharger lid provides exceptional strength while clearing the factory hood vents and strut tower brace. Combined with the massive air-to-water bar-plate intercoolers, this system keeps intake air temperatures stable even under aggressive driving.
Complete Upgrade System
The Whipple WK-2550-38 kit is engineered as a complete upgrade package, including everything needed for a clean, factory-style installation. Each system includes a billet 132mm throttle body, Whipples 145mm cold air intake, upgraded belt drive components, and a full hardware kit.
An included HP Tuners RTD flash tool with required credits allows easy calibration delivery and enhanced data logging, ensuring optimal performance while maintaining emissions compliance.
Quick Specs
- Part Number: WK-2550-38
- Supercharger: Whipple W235RF Gen 6 Twin-Screw
- Displacement: 3.8L (3800cc)
- Throttle Body: Billet 132mm
- Inlet Size: Crusher 150mm
- Intercooler: Dual-core, dual-pass air-to-water
- Belt Drive: 8-rib standard (10-rib optional)
- Emissions: CARB EO D-231-84
Fitment
- 2020 Ford Shelby GT500
- 2021 Ford Shelby GT500
- 2022 Ford Shelby GT500
FAQs
Is this supercharger upgrade truly 50-state legal?
Yes. This is the first and only 3.8L GT500 supercharger upgrade that is CARB certified and legal in all 50 states.
Does this kit require internal engine modifications?
No. The system is designed to bolt onto a stock GT500 engine while safely supporting massive power increases on pump gas.
Why Buy from Beefcake Racing?
Beefcake Racing is a trusted Whipple Superchargers dealer with hands-on experience in high-horsepower Mustang builds. Our team provides expert pre-sale guidance and post-sale support to ensure your setup performs exactly as intended. Call 1-855-827-7223 or email sales@beefcakeracing.com for assistance.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
