2020-2026 Chevrolet Silverado / GMC Sierra 2500HD & 3500HD 6.6L Gas ProCharger High Output Complete System
600+ crank horsepower for the 2020-2026 GM 6.6L gasoline HD truck
Add the power and torque your work truck deserves without giving up daily drivability. ProCharger's intercooled centrifugal supercharger package is engineered for the 6.6L gasoline V8 in Chevrolet Silverado and GMC Sierra 2500HD and 3500HD models. ProCharger advertises a 50-55% power increase and more than 600 crank horsepower from the complete system on pump gas, with smooth power that is well suited to towing, passing, and on-road or off-road use.
High Output Complete System: uses a dedicated 6-rib drive and large 3-core air-to-air intercooler for an efficient, responsive street package.
Package highlights
- P-1SC-1 ProCharger in satin finish
- Dedicated 6-rib supercharger drive
- Large 3-core air-to-air intercooler
- ProFlow bypass valve
- Self-contained supercharger oiling
- No permanent engine modifications required
- Black or polished supercharger and bracket finishes available
- Optional helical gearset and P-1X upgrade
Complete system details
Configured for approximately 6 psi and a 50-55% power gain on pump gasoline. Includes the fuel and PCM calibration components specified by ProCharger for a supported stock truck. The factory PCM must be removed and shipped for programming.
Important fitment requirements
This package is for the 6.6L gasoline V8 only and does not fit the 6.6L Duramax diesel. Exact year, Chevrolet/GMC model, 2500HD/3500HD series, drivetrain, cab/bed configuration, electrical architecture, VIN, fuel, and emissions use must be supplied before the order is released.
Part number: 1KA314-SCI
Shipping: This made-to-order package ships directly from ProCharger. A $160 ground-freight charge and $35 drop-ship fee apply. Expedited or non-contiguous U.S. delivery is quoted separately.
Processing & Shipping Overview
Processing occurs before shipping.
Most in-stock items typically process within 2–3 business days before shipment or pickup. Expedited shipping options affect transit time after an order ships and do not speed up processing.
Made-to-order, special-order, vendor drop-ship, and freight items require additional processing time before shipping. Any extended lead times will be noted on the product page when applicable.
For the most up-to-date order status or lead time questions, please contact sales@smgspeed.com or use live chat during business hours.