Hellion Street Sleeper® Hidden Twin Turbo System (HT-20GT500-SS) - 2020+ Shelby GT500
Yes — this is the Hellion kit you’ve heard about. The Street Sleeper® Twin Turbo System for the 2020+ Shelby GT500 redefines what’s possible from Ford’s flagship muscle car, delivering unmatched horsepower potential, stealth installation, and everyday drivability.
The factory supercharged GT500 is undeniably impressive, but no supercharger on the planet can compete with the raw power, efficiency, and scalability of a properly engineered twin turbo system. By removing the factory supercharger and transitioning to Hellion’s proven twin turbo architecture, the GT500 becomes a platform capable of producing 1,400+ horsepower and beyond with fully adjustable boost control.
Hellion designed the Street Sleeper® system for enthusiasts who want devastating performance without flashy visuals. The turbos are discreetly mounted in a hidden location, preserving a clean OEM-style engine bay while delivering world-class power when called upon. From street driving to full throttle pulls, this system delivers brutal acceleration with no parasitic losses.
Unlike belt-driven superchargers that constantly sap engine power, the Hellion system uses spent exhaust energy to create boost — converting waste into performance. The result is more horsepower at the tires, increased efficiency, and a powerband that pulls relentlessly through the RPM range.
With over 25 years of turbo system development, Hellion engineered this as a true bolt-on solution for the GT500. No oil pan tapping. No cutting or modifying factory sheet metal. Installation can be performed in a home garage, making this one of the most refined high-horsepower systems ever developed for the Shelby platform.
*Installation requires removal of the factory supercharger and the use of a factory-style intake manifold (Holley, Plazmaman, or custom configuration).
Features
- Street Sleeper® hidden twin turbo system for 2020+ Shelby GT500
- Designed specifically for the Predator 5.2L platform
- Factory supercharger delete for maximum power potential
- Standard Hellion 64/66R billet wheel ball bearing turbochargers
- Capable of supporting 1,400+ horsepower with proper supporting mods
- Large 6-inch vertical-flow intercooler standard
- Highest-flow bar-and-plate intercooler core available
- Full sheet-metal intercooler construction
- 4-into-1 turbo headers included
- (2) Turbosmart Comp-Gate 40 wastegates for precise boost control
- (2) Turbosmart VEE Port bypass valves
- American-made stainless steel charge piping with lifetime warranty
- Exclusive Hellion turbo oiling system — no constant greasing required
- Heavy-duty silicone couplers and stainless T-bolt clamps
- High-flow K&N air filters included
- Complete hardware kit for installation
- Detailed instructions for at-home installation
- Built for daily driving in all weather conditions
- Does not include tuning or programming
Fitment
- 2020 Ford Mustang Shelby GT500 5.2L
- 2021 Ford Mustang Shelby GT500 5.2L
- 2022 Ford Mustang Shelby GT500 5.2L
- 2023 Ford Mustang Shelby GT500 5.2L
- 2024+ Ford Mustang Shelby GT500 5.2L
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