Hellion Twin Turbo System (HT-JGCSRT-TT) – 2012–2022 Jeep Grand Cherokee SRT 6.4L
The Hellion Twin Turbo System for the 2012–2022 Jeep Grand Cherokee SRT (WK2) redefines what an AWD performance SUV is capable of. Designed specifically for the 6.4L HEMI-powered SRT platform, this system replaces traditional supercharger options with a true bolt-on twin turbo solution that delivers unmatched efficiency, scalability, and outright horsepower potential.
Hellion was the first manufacturer to introduce turbo systems to modern Mopar platforms, beginning with the Challenger in 2008. That experience carries directly into this Grand Cherokee SRT kit, which has been engineered to provide massive power gains without placing constant parasitic load on the engine. Unlike belt-driven superchargers, this twin turbo system uses spent exhaust energy to generate boost, allowing the engine to make more power with less stress.
The twin turbochargers are positioned close to the engine for rapid spool and immediate torque response, while still delivering crushing top-end power. With AWD traction and adjustable boost control, the result is a Jeep that launches harder, pulls longer, and accelerates faster than any supercharged-only configuration—on the street or at the track.
This complete bolt-on tuner kit installs with common hand tools in a home garage or professional shop and requires no cutting or permanent modification to the vehicle. Large-diameter 3-inch charge piping, a high-efficiency air-to-air intercooler, and Hellion’s proven oiling system ensure reliable performance across a wide range of power levels, from mild street builds to extreme horsepower setups.
Boost output can be adjusted on the fly using an optional in-cabin boost controller, allowing the system to be dialed down for daily driving or turned up when conditions allow—no pulley swaps, belt changes, or downtime required. With proper supporting modifications, this system is capable of producing power levels far beyond what a traditional supercharger can safely achieve.
Each system is sold as a tuner kit and does not include programming or fuel system components. Our team can assist with tuning and fuel recommendations to match your specific performance goals.
Features
- True bolt-on twin turbo system for Jeep Grand Cherokee SRT (WK2)
- Designed for maximum efficiency, fast spool, and extreme horsepower potential
- Hellion 62/62R billet ball bearing turbochargers standard
- Multiple turbo upgrade options available:
- 62/62R (standard)
- 64/66R
- 68R
- 71R
- Large-diameter 3-inch stainless charge piping
- High-flow air-to-air intercooler designed for multiple power levels
- (2) Turbosmart wastegate actuators
- Turbosmart Race Port bypass valve
- American-made stainless steel piping with lifetime warranty
- Heavy-duty silicone couplers and stainless T-bolt clamps
- Exclusive Hellion oiling system—no electric pumps to fail
- Complete hardware kit and detailed installation instructions included
- Designed to be daily driven in all weather conditions
- Programming and fuel system components not included
Fitment
- 2012 Jeep Grand Cherokee SRT 6.4L (WK2)
- 2013 Jeep Grand Cherokee SRT 6.4L (WK2)
- 2014 Jeep Grand Cherokee SRT 6.4L (WK2)
- 2015 Jeep Grand Cherokee SRT 6.4L (WK2)
- 2016 Jeep Grand Cherokee SRT 6.4L (WK2)
- 2017 Jeep Grand Cherokee SRT 6.4L (WK2)
- 2018 Jeep Grand Cherokee SRT 6.4L (WK2)
- 2019 Jeep Grand Cherokee SRT 6.4L (WK2)
- 2020 Jeep Grand Cherokee SRT 6.4L (WK2)
- 2021 Jeep Grand Cherokee SRT 6.4L (WK2)
- 2022 Jeep Grand Cherokee SRT 6.4L (WK2)
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