ProCharger High Output Intercooled Tuner Supercharger Kit with P-1SC-1 (2020-2026 Silverado / Sierra 2500 / 3500 6.6L) - 1KA304-SCI
Custom-Tuned Power for 6.6L Silverado and Sierra HD Trucks
Take full control of your build with the ProCharger High Output Intercooled Supercharger Tuner Kit for 2020-2026 Silverado and Sierra 2500 / 3500 6.6L trucks. Designed for enthusiasts who want maximum flexibility, this system delivers 50-55% horsepower gains and the ability to push beyond 600+ crank horsepower with the right supporting mods and tuning.
Whether you are towing, hauling, or building a high-performance HD truck, this system delivers strong torque gains, smooth power delivery, and scalable performance for serious applications.
Tuner Kit Freedom - Built for Custom Builds
This tuner kit configuration includes all of the core supercharger hardware but leaves tuning and fuel system components up to you, allowing for full customization.
- Designed for custom tuning and advanced performance setups
- Supports alternative fuels such as E85, race fuel, and methanol injection
- Ideal for builds with upgraded cams, headers, exhaust, and cylinder heads
- Not emissions certified due to custom tuning capability
High Output Performance for Heavy Duty Applications
This system is engineered to deliver reliable power gains while maintaining drivability and durability for real-world use.
- 50-55% horsepower increase on pump gas
- 600+ crank horsepower capability
- Increased torque for towing and hauling
- Smooth and predictable power delivery
- Optimized for modern heavy-duty transmissions
P-1SC-1 Supercharger - Proven HD Performance
At the core of the system is the P-1SC-1 centrifugal supercharger, designed for efficient airflow and long-term reliability. The self-contained oiling system eliminates the need for external oil lines, keeping installation clean and maintenance simple.
- P-1SC-1 head unit
- Optional helical gear set for quieter operation
- Upgradeable to P-1X, D-1SC, or D-1X head units
- Consistent boost delivery under load
Advanced Intercooling for Consistent Power
The included 3-core vertical air-to-air intercooler ensures optimal intake temperatures and reliable performance under demanding conditions.
- Large air-to-air intercooler for improved charge cooling
- Supports sustained performance during towing and heavy use
- Helps reduce intake temperatures and detonation risk
- Maintains consistent boost performance
Performance Highlights
- 50-55% horsepower increase potential
- 600+ crank horsepower capability
- 7 psi of boost
- High Output Intercooled Supercharger System hardware
- Designed for custom tuning and scalable power
Key Features
- P-1SC-1 centrifugal supercharger
- 3-core vertical air-to-air intercooler
- Dedicated 6-rib belt drive system
- Bullet blow-off valve included
- Self-contained oiling system - no external oil lines required
- Supercharger mounting location minimizes heat
- 100% reversible installation
- OEM-level fit, finish, and drivability
- Made in the USA
Available Options
- Black or polished supercharger and bracket finishes
- Helical gear set for reduced noise
- Head unit upgrades: P-1X, D-1SC, D-1X
Quick Specs
- Manufacturer: ProCharger
- Product Type: High Output Intercooled Tuner Supercharger Kit
- Head Unit: P-1SC-1
- Engine: 6.6L V8
- Vehicle Fitment: Silverado / Sierra 2500HD / 3500HD
- Model Years: 2020, 2021, 2022, 2023, 2024, 2025, 2026
- Horsepower Gain: 50-55% (600+ crank HP potential)
- Boost Level: 7 psi
- Intercooler: 3-core air-to-air (vertical mount)
- Drive System: Dedicated 6-rib belt drive
- Tuning: Not included (tuner kit)
- Fuel Components: Not included
- Factory Intake Manifold: Retained
- Oiling System: Self-contained
- Warranty: 1-year standard, optional 3-year
- Part Number: 1KA304-SCI
FAQs
What is the difference between this tuner kit and a complete system?
This tuner kit includes all supercharger hardware but does not include tuning or fuel system components, allowing for full customization.
Is this kit suitable for heavily modified engines?
Yes, this system is ideal for built engines and custom setups running upgraded components and alternative fuels.
Fitment
- 2020 Chevrolet Silverado 2500HD 6.6L
- 2021 Chevrolet Silverado 2500HD 6.6L
- 2022 Chevrolet Silverado 2500HD 6.6L
- 2023 Chevrolet Silverado 2500HD 6.6L
- 2024 Chevrolet Silverado 2500HD 6.6L
- 2025 Chevrolet Silverado 2500HD 6.6L
- 2026 Chevrolet Silverado 2500HD 6.6L
- 2020 Chevrolet Silverado 3500HD 6.6L
- 2021 Chevrolet Silverado 3500HD 6.6L
- 2022 Chevrolet Silverado 3500HD 6.6L
- 2023 Chevrolet Silverado 3500HD 6.6L
- 2024 Chevrolet Silverado 3500HD 6.6L
- 2025 Chevrolet Silverado 3500HD 6.6L
- 2026 Chevrolet Silverado 3500HD 6.6L
- 2020 GMC Sierra 2500HD 6.6L
- 2021 GMC Sierra 2500HD 6.6L
- 2022 GMC Sierra 2500HD 6.6L
- 2023 GMC Sierra 2500HD 6.6L
- 2024 GMC Sierra 2500HD 6.6L
- 2025 GMC Sierra 2500HD 6.6L
- 2026 GMC Sierra 2500HD 6.6L
- 2020 GMC Sierra 3500HD 6.6L
- 2021 GMC Sierra 3500HD 6.6L
- 2022 GMC Sierra 3500HD 6.6L
- 2023 GMC Sierra 3500HD 6.6L
- 2024 GMC Sierra 3500HD 6.6L
- 2025 GMC Sierra 3500HD 6.6L
- 2026 GMC Sierra 3500HD 6.6L
Why Buy from Beefcake Racing?
Beefcake Racing is your trusted source for ProCharger systems and heavy-duty truck performance upgrades. We help you build the right combination for your goals, whether you're towing, racing, or pushing the limits of your setup.
Our team understands what it takes to make reliable power in demanding applications.
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

