Whipple Supercharger Kit Gen 6 3.0L (2018–2021 Jeep SRT8 6.4L)
Overview
The Whipple Gen 6 3.0L Supercharger Kit for the 2018–2021 Jeep Grand Cherokee SRT8 6.4L is the most powerful emissions-legal supercharger system available for the modern Hemi platform. Built on Whipple’s race-proven twin-screw technology, this complete bolt-on system delivers instant torque, massive horsepower gains, and industry-leading cooling—without compromising drivability or reliability.
At the heart of the kit is a front-entry Gen 6 3.0L Whipple twin-screw blower featuring an integrated Crusher™ 112mm inlet. Combined with Whipple’s patented dual-core, dual-pass intercooler system, this setup moves more air, runs cooler, and delivers consistent power across the entire RPM range.
Gen 6 Technology & Race-Proven Design
This system uses the same core technology trusted in Dodge factory Drag Pak race cars, proving its durability and efficiency under extreme conditions. The Gen 6 supercharger features all-new bearings, gears, rotors, and housing with an optimized 3x4 rotor combination and a 285-degree helix for maximum airflow and reduced heat generation.
The result is neck-snapping low-end torque, relentless mid-range pull, and strong top-end horsepower—exactly what a heavy, high-performance SRT8 demands.
Performance Highlights
- Most powerful emissions-legal supercharger available for the 6.4L Hemi
- Gen 6 3.0L Whipple twin-screw supercharger with 112mm Crusher™ inlet
- Instant boost with massive torque gains across the RPM range
- Patented dual-core, dual-pass intercooler system
- Race-proven technology derived from Dodge Drag Pak
Advanced Cooling & Fuel System
Whipple’s dual-core, dual-pass intercooler utilizes massive air-to-water bar-plate intercoolers that provide lower air-charge temperatures than any other positive displacement supercharger system. An oversized heat exchanger and high-flow intercooler pump ensure rapid recovery times during aggressive street driving or repeated wide-open throttle pulls.
The fuel system is fully addressed with Hellcat high-flow fuel injectors, billet fuel rails, and a fuel pump voltage booster, delivering the fueling capacity required for safe, reliable power.
Installation, Tuning & Expandability
This is a true complete bolt-on system. No internal engine modifications are required, and the finished installation maintains a factory-installed appearance. Plug-and-play wiring with OEM-style connectors simplifies installation and long-term serviceability.
The proven 6-rib belt drive with adjustable idler allows for easy belt changes and 3-minute pulley swaps. The system is also easily upgradeable with optional cold air intakes and oversized throttle bodies as power goals increase.
PCM & Emissions Information
This system is CARB certified and 50-state legal under EO D-231-103 for model years 2018–2021.
PCM Notes:
• Model years 2015–2023 require an unlocked PCM. Whipple includes an HP Tuners unlock code with the supercharger system purchase; the PCM must be shipped to HP Tuners for unlock service.
• 2018–2023 kits include a security gateway module to allow PCM read/write functionality.
Quick Specs
- Part Number: WK-3132-30
- Application: 2018–2021 Jeep Grand Cherokee SRT8 6.4L
- Supercharger Type: Whipple Gen 6 twin-screw
- Displacement: 3.0 liters
- Inlet: Crusher™ 112mm round inlet
- Intercooling: Dual-core, dual-pass bar-plate system
- Fuel System: Hellcat injectors, billet rails, voltage booster
- Belt Drive: 6-rib with adjustable idler
- Emissions: CARB certified, EO D-231-103
FAQs
Is this supercharger kit street legal?
Yes. This system is CARB certified and legal in all 50 states when installed as supplied.
Does this kit include everything needed for installation?
Yes. The kit includes fueling components, cooling upgrades, wiring, tuning hardware, and all required installation hardware.
Fitment
- 2018 Jeep Grand Cherokee SRT8 6.4L
- 2019 Jeep Grand Cherokee SRT8 6.4L
- 2020 Jeep Grand Cherokee SRT8 6.4L
- 2021 Jeep Grand Cherokee SRT8 6.4L
Why Buy from Beefcake Racing?
Beefcake Racing is a trusted Whipple Superchargers dealer with extensive experience supporting high-horsepower Hemi performance builds. Our team helps you select the right supercharger system and supporting components to deliver reliable, repeatable power with confidence.
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
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