Hellion Hellraiser Twin Turbo System – 2003–2004 Ford Mustang SVT Cobra 4.6L
The Hellion Hellraiser Twin Turbo System for the 2003–2004 Ford Mustang SVT Cobra is the ultimate forced-induction solution for the supercharged Terminator platform. Engineered for unmatched flexibility, extreme horsepower capability, and long-term upgrade potential, the Hellraiser system delivers performance that no traditional power adder can match.
What sets the Hellraiser system apart is its ability to operate either as a traditional twin turbo system or as a compound-boost setup. When used alongside the factory Roots-style supercharger, the Hellraiser becomes the first aftermarket compound-boost system ever developed for the Mustang. In compound form, the turbos feed pressurized air into the supercharger, producing higher total boost levels, stronger low-end torque, and significantly greater average power throughout the RPM range.
Unlike belt-driven superchargers that consume engine power through parasitic loss, the Hellraiser system utilizes spent exhaust energy to generate boost efficiently. The result is increased power to the tires, improved throttle response, and horsepower potential far beyond what single power-adder systems can achieve.
At the core of the system are twin Precision 61mm cast-wheel journal bearing turbochargers, selected for their proven durability, responsive spool characteristics, and strong top-end performance. With proper fueling, tuning, and supporting engine modifications, this system can support everything from aggressive street builds to extreme high-horsepower race applications.
All turbo piping is constructed from American-made stainless steel, ensuring excellent fitment, superior heat resistance, and long-term reliability under high boost conditions. The system is designed to integrate seamlessly into the Terminator chassis while preserving upgrade flexibility for future power goals.
This is a true tuner system and does not include fuel system components or engine calibration, allowing builders to tailor the setup to their specific power targets. Whether running turbo-only or compound boost, the Hellraiser Twin Turbo System provides unmatched capability and versatility for the 2003–2004 Cobra.
Key Features
- Hellion Hellraiser Twin Turbo system for 2003–2004 SVT Cobra
- Supports turbo-only or compound boost configurations
- Precision 61mm cast wheel journal bearing turbochargers standard
- Engineered to work with or without the factory Roots supercharger
- American-made stainless steel turbo piping
- Exceptional low-end torque and average power gains
- True tuner kit – fuel system and tuning not included
- Designed for high-horsepower street and race applications
K-Member & Suspension Package
This system includes a complete tubular K-member package to ensure proper turbo placement, exhaust routing, and suspension geometry. The package includes:
- Tubular K-member
- Caster/camber plates
- A-arms
- Coil-over suspension components
Hellion 1999–2004 Mustang systems were engineered around the UPR tubular K-member. Use of alternate K-member manufacturers may complicate installation and alter the intended fitment and performance of the turbo system.
Fitment
- 2003 Ford Mustang SVT Cobra 4.6L Supercharged
- 2004 Ford Mustang SVT Cobra 4.6L Supercharged
Important Notes
- Fuel system components not included
- Programming/tuning not included
- Professional installation and custom tuning recommended
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