Hellion Street Sleeper® Hidden Twin Turbo System (HT-24GT-SS) - 2024+ Mustang GT & Dark Horse
The Hellion Street Sleeper® Hidden Twin Turbo System for the 2024+ Mustang GT and Dark Horse represents the absolute pinnacle of modern Mustang forced induction. Designed from the ground up for the S650 platform, this is the most advanced, highest-potential turbo system ever offered for the latest 5.0L Coyote—and it was developed by the same team that built the very first production S650 twin turbo kit.
Unlike supercharger systems that remove Ford’s innovative dual throttle body intake, the Hellion Street Sleeper® preserves this factory supercar-inspired design, allowing the engine to breathe exactly as intended. By utilizing a fully hidden turbo layout, this system delivers massive power while maintaining a clean engine bay and true sleeper appearance. With tuning now available, Hellion-powered S650s are already setting the pace with industry-leading power numbers and track results.
This is the most powerful power-adder available for the Mustang—period. Twin turbocharging harnesses wasted exhaust energy to generate boost without parasitic loss, delivering crushing torque, higher efficiency, and significantly more power to the tires than any belt-driven alternative. Adjustable from low boost street setups to extreme four-digit horsepower builds, the Street Sleeper® offers unmatched scalability.
With over 25 years of turbo system engineering, Hellion has perfected a true bolt-on solution for the S650. No oil pan tapping. No cutting factory sheet metal. Most installations can be completed in a single day. The base system includes twin 62mm turbos, while a wide range of turbo, fuel system, and blackout upgrade options are available to support builds exceeding 2,000 horsepower.
Features
- Hidden twin turbo system designed specifically for 2024+ S650 Mustang GT and Dark Horse
- Preserves the factory dual throttle body intake system
- Adjustable boost capability from street-friendly levels to extreme race power
- Multiple T4 turbo options available:
- 62/62 – 1000+ HP
- 62/62B – 1200+ HP
- 64/66R – 1700+ HP
- 68/70 – 2000+ HP
- 4-into-1, 14-gauge stainless steel turbo headers (standard)
- Large vertical-flow, dual inlet/outlet intercooler with full sheet-metal construction
- Highest-flow bar-and-plate intercooler core available, built in the USA
- (2) Turbosmart Comp-Gate 40 wastegates
- (2) Turbosmart VEE Port bypass valves
- American-made stainless steel piping with lifetime warranty
- Heavy-duty silicone couplers and stainless T-bolt clamps
- High-flow K&N air filters
- Exclusive Hellion oiling system—no external greasing or unreliable electric pumps
- Complete hardware kit and detailed installation instructions included
Fitment
- 2024 Ford Mustang GT 5.0L
- 2025 Ford Mustang GT 5.0L
- 2026 Ford Mustang GT 5.0L
- 2024 Ford Mustang Dark Horse 5.0L
- 2025 Ford Mustang Dark Horse 5.0L
- 2026 Ford Mustang Dark Horse 5.0L
Note: Programming is not included. Competition use only. Not legal for sale or use in the state of California.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
