Whipple 2020-2022 Shelby GT500 5.2L Predator Gen 6 3.8L Supercharger Upgrade Kit

The Whipple Gen 6 3.8L Supercharger Upgrade Kit transforms the already potent 2020-2022 Shelby GT500 into a true 1,000+ horsepower performer while maintaining 50-state emissions compliance. Replacing the factory 2.65L supercharger with Whipple's massive Gen 6 W235AX 3.8L twin-screw supercharger, this complete upgrade delivers dramatically increased airflow, lower charge temperatures, and significantly greater power potential without requiring internal engine modifications.

Engineered around Whipple's patented dual-core, dual-pass intercooler technology, oversized Crusher™ inlet system, billet 132mm throttle body, and 145mm cold air intake, the system provides exceptional thermal efficiency and consistent performance. On a completely stock 5.2L Predator engine using 93-octane fuel, the system is capable of producing up to 1,035 engine horsepower at approximately 16 psi of boost, representing an increase of roughly 275 horsepower over the factory configuration while retaining OEM drivability and reliability.

Vehicle Fitment

2020 Ford Mustang Shelby GT500 5.2L Supercharged Predator V8
2021 Ford Mustang Shelby GT500 5.2L Supercharged Predator V8
2022 Ford Mustang Shelby GT500 5.2L Supercharged Predator V8

Features

50-state emissions legal (CARB EO D-231-84)
Gen 6 W235AX 3.8L (3800cc) front-feed twin-screw supercharger
Produces up to 1,035 engine horsepower on a stock engine using 93-octane fuel*
Approximately 275 HP gain over the factory supercharger system
43% larger displacement than the factory 2.65L roots-style supercharger
Billet 132mm electronic throttle body with factory electronics
Whipple 145mm cold air intake system with oversized air filter
Oversized Crusher™ 150mm inlet for maximum airflow
Patented dual-core, dual-pass intercooler system
Massive air-to-water aluminum bar-and-plate intercoolers
Dual 1-inch intercooler inlet capacity for substantially increased coolant flow
Billet 6061-T6 supercharger lid clears the factory hood and strut tower brace
3x4 rotor design for increased airflow, RPM capability, and efficiency
Oversized intercooled air-bypass system for improved drivability and reduced burst knock
8-rib belt drive with adjustable billet idler system
Optional 10-rib belt drive upgrade available
OEM quick-connect fittings for simplified installation
No internal engine modifications required
Fits beneath the factory hood
No cutting or grinding required during installation
Available in wrinkle black, polished, Ford textured blue, or custom finishes

Kit Includes

Gen 6 W235AX 3.8L Whipple twin-screw supercharger assembly
Billet 132mm electronic throttle body
145mm cold air intake system with oversized air filter
Patented dual-core dual-pass intercooler assembly
Billet supercharger lid
HP Tuners RTD flash tool
Four HP Tuners credits
Motor mount brackets
Billet idler plate
Billet idler pulleys
Intercooler vent system
Supercharger drive belt
Complete installation hardware

Specifications

Supercharger Type: Twin-Screw
Supercharger Model: Gen 6 W235AX
Supercharger Displacement: 3.8L (3800cc)
Throttle Body: Billet 132mm Electronic
Cold Air Intake Diameter: 145mm
Supercharger Inlet: Crusher™ 150mm
Belt Drive: 8-Rib (Optional 10-Rib Upgrade Available)
Calibration Device: HP Tuners RTD Flash Tool
HP Tuners Credits Included: 4
Recommended Fuel: Premium 91+ Octane (93 Octane Recommended)
Target Boost Pressure: Approximately 16 psi
CARB Executive Order: D-231-84

Important Notes

Designed exclusively for 2020-2022 Ford Mustang Shelby GT500 models equipped with the supercharged 5.2L Predator V8.
Maintains 50-state emissions compliance under CARB Executive Order D-231-84.
No internal engine modifications are required for installation.
Complete competition versions and optional 10-rib drive systems are available separately.
Power figures are based on manufacturer testing using 93-octane fuel under optimal conditions.
Actual horsepower and torque will vary based on fuel quality, environmental conditions, vehicle condition, and dyno methodology.

*Performance figures are manufacturer estimates obtained under ideal testing conditions. Results may vary depending on fuel quality, altitude, ambient temperature, and vehicle configuration.