ProCharger Stage II Intercooled Tuner Kit w/ P-1SC-1 (1KA404-SCI) - 2020-2026 Silverado & Sierra 2500HD / 3500HD 6.6L
Take full control of your 2020-2026 Silverado or Sierra 2500HD / 3500HD 6.6L build with the ProCharger Stage II Intercooled Tuner Supercharger Kit. Designed for experienced builders, this system delivers the proven hardware needed to support massive horsepower gains while allowing complete flexibility in tuning and fueling.
Capable of delivering 50-55% horsepower gains and supporting 600+ crank horsepower with the right setup, this system is ideal for towing, hauling, or building a high-performance heavy-duty truck.
Features
- P-1SC-1 ProCharger centrifugal supercharger
- Stage II intercooled tuner supercharger kit
- Dedicated 8-rib supercharger drive system
- 1500 HP-rated air-to-air race intercooler
- Bullet blow-off valve included
- Self-contained oiling system - no external oil lines required
- OEM-quality fit and finish
- 100% reversible installation with no permanent modifications
- Designed for Global B ECM applications
- Made in the USA
Additional Notes
- Delivers 50-55% horsepower gain potential with proper setup
- Capable of supporting 600+ crank horsepower
- Approximately 7 psi of intercooled boost
- Tuner kit requires custom calibration and fuel system upgrades
- Supports pump gas, E85, race fuel, and methanol injection setups
- Dedicated 8-rib drive improves belt grip and boost stability
- 1500 HP intercooler increases cooling capacity for high-demand use
- Optimized for towing, hauling, and heavy-duty performance
- Upgradeable to P-1X, D-1SC, and D-1X head units
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
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