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C8 Corvette Grand Sport 6.7L Conversion 1000+HP Twin Turbo Package – Stingray & E-Ray
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Boost District C8 Corvette Grand Sport 6.7L 1000+HP Twin Turbo Installed Package
Take the C8 Corvette to an entirely different level with the Boost District Grand Sport 6.7L Conversion Twin Turbo Package — a complete, installed performance package engineered for 2020-2026 C8 Stingray and C8 E-Ray owners looking for true four-digit horsepower, exceptional street performance, and advanced factory-ECU integration.
This isn't simply a bolt-on turbo kit. It's a complete Boost District-developed power package combining our 6.7L engine conversion, twin Precision turbochargers, upgraded fueling, supporting hardware, ECU calibration, and proprietary software features into one proven C8 platform.
On 93-octane pump gas, our development combination has produced over 930 RWHP from the rear wheels, with an E-Ray delivering approximately 1,100+ combined wheel horsepower when including the electric front drive system.
Even more impressive: this performance was achieved without relying on ethanol or race fuel.
Proven Performance
Our C8 development car entered Boost District essentially stock and left producing four-digit power with performance to match:
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930+ RWHP
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1,100+ combined WHP on E-Ray
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4.43-second 60–130 MPH
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93-octane pump gas | Flex Fuel E85 Also an available option
Our Stingray development combination has also recorded a 4.61-second 60–130 MPH pass.
These results demonstrate what the complete Boost District package is capable of when engine development, turbo sizing, fueling, calibration, and software are engineered as one system.
Designed for C8 Stingray & C8 E-Ray
The Grand Sport 6.7L Twin Turbo Package is available for:
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C8 Corvette Stingray
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C8 Corvette E-Ray
Each vehicle is configured and calibrated specifically for its drivetrain and intended power level.
Boost District Proprietary ECU Features
One of the biggest differences between this package and a conventional C8 turbo build is the software behind it.
Boost District develops proprietary functionality within the factory C8 ECU to provide greater control over the turbo system while maintaining factory-level integration and drivability.
Depending on vehicle configuration, available Boost District-developed features include:
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Electronic Boost Control
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Anti-Lag
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Boost Cut / Overboost Protection
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2-Step / Launch Control Functionality
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Flex-Fuel Capability
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Precision Boost Management
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Custom Engine & Drivetrain Calibration
Rather than relying solely on external controllers, our goal is to integrate these features directly into the vehicle's existing control architecture wherever possible.
The result is a C8 that doesn't simply make a dyno number — it delivers the power in a controlled, repeatable, and usable way.
Twin Turbo System
At the heart of the package is our proven Boost District C8 twin-turbo system utilizing Precision 6466 turbochargers.
Twin Turbo Package Includes
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Twin Precision 6466 Turbochargers
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Air-to-Water Intercooler System
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Complete Hot-Side Piping
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Complete Cold-Side Piping
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Precision Wastegates
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Precision Blow-Off Valves
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Preassembled Oil Scavenge System
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Couplers, Clamps & Installation Hardware
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ECM Unlock
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Boost District Custom Calibration
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Boost District Proprietary ECU Programming
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Supporting Components Required for the Selected Build Configuration
The entire combination is designed around fitment, power capability, serviceability, and real-world performance.
More Than Peak Horsepower
Building a 1,000+ horsepower C8 is about much more than installing larger turbochargers.
Boost District develops the hardware and software together with an emphasis on:
Power. Drivability. Protection. Repeatability. Integration.
Our experience developing some of the quickest and highest-powered C8 Corvettes allows us to build each package as a complete system rather than a collection of unrelated parts.
Whether you're looking for an exceptionally fast street car, a roll-racing setup, or a C8 capable of serious track performance, the Grand Sport package provides a proven foundation with room for additional development.
Exhaust Configuration
The standard package utilizes the factory-style Stingray / E-Ray side-exit exhaust configuration.
Optional Center-Exit Conversion
A center-exit exhaust conversion is available for an additional $4,500.
Contact us before ordering if you would like the center-exit configuration included with your build.
Pricing & Scheduling
Installed & Tuned Package: Starting at $65,000
DIY / Mail-Out Package: Starting at $58,650, including calibration and ECU unlock
Build Slot Deposit: $5,000
The deposit reserves your position on the Boost District installation calendar and allows us to begin allocating components for your build. The deposit is applied toward the final invoice and is non-refundable.
Final pricing can vary depending on vehicle configuration, selected options, fueling requirements, exhaust configuration, and additional requested upgrades.
See the Package in Action
Watch our C8 Grand Sport Twin Turbo development video to see the package, performance, and engineering behind the build.
YouTube Video:
https://www.youtube.com/watch?v=k2HWp1nxweI
Schedule Your C8 Twin Turbo Build
Ready to transform your Stingray or E-Ray?
Contact Boost District to discuss your power goals, vehicle configuration, and available build dates.
Email: installs@boostdistrict.com
Phone: (817) 210-6699
You can also secure your place on our installation calendar through our online deposit process.
Important Performance Disclaimer
Horsepower, torque, acceleration, and other performance results will vary based on vehicle configuration, engine combination, calibration, fuel quality, atmospheric conditions, tire setup, road or track conditions, dyno type, measurement method, and other variables.
Performance figures shown above represent results achieved with specific Boost District development vehicles and configurations and should not be interpreted as a guarantee that every vehicle will produce identical results.
Contact Boost District to discuss realistic horsepower and performance expectations for your specific Corvette.
Build the C8 You Actually Wanted
The Boost District Grand Sport 6.7L 1000+HP Twin Turbo Package takes the already-capable C8 Corvette platform and transforms it into a completely different machine.
With four-digit horsepower capability, twin Precision turbos, Boost District-developed ECU functionality, and a fully integrated engine and tuning package, this is our answer for C8 owners who want more than a basic bolt-on turbo setup.
C8 Stingray or E-Ray. Pump gas or flex fuel. Street car or serious performance build.
Build it once. Build it right. Stay Boosted.
