Whipple Superchargers 2020-2022 Ford Mustang Shelby GT500 Gen 6 3.8L Supercharger Upgrade Kit
or as low as $758.33/mo with Affirm
Whipple Gen 6 3.8L — Shelby GT500
The factory 2.65L was the warm-up. 43% more displacement turns the Predator into a 1,035-horsepower street weapon — complete system, PN WK-2550-38.
Engineered as one system.
The GT500’s factory roots blower runs out of breath long before the 5.2L Predator does. Whipple’s Gen 6 W235ax 3.8L twin-screw moves the same air with lower power draw and lower discharge temps — and on 93 octane with a 100% stock engine and exhaust, it supports up to 1,035 HP at 16 psi.
Airflow runs through a billet 132mm throttle body and Whipple’s 145mm high-flow cold air intake. Billet idlers, motor-mount brackets and all install hardware come in the box — engineered to package the big blower under the stock hood.
What’s in the box
- Whipple Gen 6 W235ax 3.8L twin-screw
- 43% more displacement vs the factory 2.65L
- Billet 132mm throttle body
- 145mm high-flow CAI w/ oversized filter
- Patented dual-core, dual-pass intercooler
- Billet idler components
- Motor mount bracket system (stock-hood clearance)
- Supercharger belt + complete install hardware
Up close
Specifications
- Part Number
- WK-2550-38
- Power
- Up to 1,035 HP @ 16 psi (93 octane, stock engine)*
- Supercharger
- Gen 6 W235ax — 3.8L twin-screw
- Throttle Body
- Billet 132mm
- Intake
- 145mm high-flow CAI
- Intercooling
- Dual-core dual-pass + factory-style integration
- Ship Weight
- 149 lbs
- Manufactured
- Fresno, California, USA
- Belt
- 8-rib adjustable (optional 10-rib billet system)
- Tuning
- Tomahawk flash tool — request calibration BEFORE install
- Pulley
- 3-minute changes · pocketed 6061-T6 billet
Calibration support and flash tool are selectable above — already own an HP Tuners tool? Take the Cal-Only credit. Questions: 805-267-9762.
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