ProCharger Stage II Intercooled Supercharger System with P-1SC-1 (2021-2026 Escalade / Tahoe / Suburban / Yukon / Denali 5.3L / 6.2L) - 1KB312-SCI
Stage II Intercooled Power for 2021-2026 GM SUVs
Give your 2021-2026 Escalade, Tahoe, Suburban, Yukon, or Denali 5.3L / 6.2L the kind of power upgrade that completely changes how a full-size SUV feels on the street, on the highway, and under load. The ProCharger Stage II Intercooled Supercharger System with P-1SC-1 head unit is built for owners who want a stronger, more capable SUV without giving up drivability.
With 45-50% more horsepower on 93 octane, this system delivers serious gains in acceleration, passing power, and towing torque while keeping power delivery smooth and predictable. It is a great fit for performance-minded daily drivers, family haulers, and tow rigs that need more muscle across the entire RPM range.
What Makes the Stage II System Different
The Stage II system builds on ProCharger's already proven High Output setup by adding the airflow and cooling upgrades needed for higher power potential and future growth.
- Race intercooler upgrade capable of supporting up to 1,000 HP
- Stage II air inlet for improved airflow
- Easily upgradable for higher horsepower levels
- Designed for builders who want more room to grow
P-1SC-1 Power with Street-Friendly Manners
At the center of the system is the P-1SC-1 centrifugal supercharger, a proven head unit known for efficient airflow, strong top-end performance, and dependable real-world use. Combined with the dedicated 8-rib drive and upgraded intercooling, it gives these SUVs a major performance increase without turning them into a headache to live with.
This setup is designed to deliver smooth power for on-road and off-road use, increased torque for towing, and excellent compatibility with the factory 10-speed transmission.
Intercooled Performance with Real-World Reliability
ProCharger designed this kit to be more than just a dyno queen. The large air-to-air intercooling strategy and optimized supercharger mounting location help keep charge temps under control while minimizing heat exposure. That means more repeatable performance and a more usable powerband in real driving conditions.
- Large air-to-air intercooling for maximum power
- Upgraded Stage II race intercooler for increased capacity
- Mounting location helps minimize heat
- Built for smooth, consistent performance
Designed for Daily Driving, Towing, and Long-Term Use
This is not just a power adder for weekend fun. ProCharger positions these systems as a complete turnkey solution for owners who want more out of their SUV without sacrificing usability. The system is designed to be fuel mileage friendly in normal driving, easy to maintain, and fully reversible with no permanent modifications.
- 45-50% HP gains on 93 octane
- Reliability and durability associated with 200k+ miles
- Increased torque for towing
- Quick and easy install - DIY friendly
- 100% reversible with no permanent modifications
Features
- P-1SC-1 supercharger head unit
- Stage II Intercooled Supercharger System
- Race intercooler upgrade rated up to 1,000 HP
- Stage II air inlet
- 8-rib dedicated belt drive
- Bullet blow-off valve
- PCM tuning supplied
- Retains the factory intake manifold
- Quiet option available for daily driver and work vehicle use
- Black or polished finish optional on supercharger and/or bracket
- Helical gear set option for noise reduction
- P-1X head unit upgrade available
- 50-state street legal systems available
- Proudly made in the USA
Quick Specs
- Manufacturer: ProCharger
- Product Type: Stage II Intercooled Supercharger System
- Head Unit: P-1SC-1
- Engine Compatibility: 5.3L / 6.2L
- Vehicle Fitment: 2021-2026 Escalade / Tahoe / Suburban / Yukon / Denali
- Horsepower Gain: 45-50% on 93 octane
- 5.3L Gain: 160+ horsepower
- 6.2L Gain: 190+ horsepower
- Boost: 8 psi
- Intercooler: Stage II race intercooler
- Intercooler Capacity: 1,000 HP capable
- Air Inlet: Stage II air inlet
- Drive System: 8-rib dedicated belt drive
- Blow-Off Valve: Bullet blow-off valve
- Tuning: PCM tuning supplied
- Factory Intake Manifold: Retained
- Typical Install Time: 6-8 hours
- Warranty: 1-year standard supercharger warranty, optional 3-year
- Part Number: 1KB312-SCI
FAQs
What is the difference between the Stage II system and the High Output system?
The Stage II system includes the race intercooler upgrade and Stage II air inlet, giving you more airflow, greater cooling capacity, and an easier path to higher horsepower levels.
Is this system still practical for a daily-driven SUV?
Yes. This kit is designed to deliver big power gains while maintaining smooth drivability, strong towing performance, and low-maintenance operation for real-world street use.
Fitment
- 2021 Cadillac Escalade 5.3L
- 2022 Cadillac Escalade 5.3L
- 2023 Cadillac Escalade 5.3L
- 2024 Cadillac Escalade 5.3L
- 2025 Cadillac Escalade 5.3L
- 2026 Cadillac Escalade 5.3L
- 2021 Cadillac Escalade 6.2L
- 2022 Cadillac Escalade 6.2L
- 2023 Cadillac Escalade 6.2L
- 2024 Cadillac Escalade 6.2L
- 2025 Cadillac Escalade 6.2L
- 2026 Cadillac Escalade 6.2L
- 2021 Chevrolet Tahoe 5.3L
- 2022 Chevrolet Tahoe 5.3L
- 2023 Chevrolet Tahoe 5.3L
- 2024 Chevrolet Tahoe 5.3L
- 2025 Chevrolet Tahoe 5.3L
- 2026 Chevrolet Tahoe 5.3L
- 2021 Chevrolet Tahoe 6.2L
- 2022 Chevrolet Tahoe 6.2L
- 2023 Chevrolet Tahoe 6.2L
- 2024 Chevrolet Tahoe 6.2L
- 2025 Chevrolet Tahoe 6.2L
- 2026 Chevrolet Tahoe 6.2L
- 2021 Chevrolet Suburban 5.3L
- 2022 Chevrolet Suburban 5.3L
- 2023 Chevrolet Suburban 5.3L
- 2024 Chevrolet Suburban 5.3L
- 2025 Chevrolet Suburban 5.3L
- 2026 Chevrolet Suburban 5.3L
- 2021 Chevrolet Suburban 6.2L
- 2022 Chevrolet Suburban 6.2L
- 2023 Chevrolet Suburban 6.2L
- 2024 Chevrolet Suburban 6.2L
- 2025 Chevrolet Suburban 6.2L
- 2026 Chevrolet Suburban 6.2L
- 2021 GMC Yukon 5.3L
- 2022 GMC Yukon 5.3L
- 2023 GMC Yukon 5.3L
- 2024 GMC Yukon 5.3L
- 2025 GMC Yukon 5.3L
- 2026 GMC Yukon 5.3L
- 2021 GMC Yukon 6.2L
- 2022 GMC Yukon 6.2L
- 2023 GMC Yukon 6.2L
- 2024 GMC Yukon 6.2L
- 2025 GMC Yukon 6.2L
- 2026 GMC Yukon 6.2L
- 2021 GMC Denali 5.3L
- 2022 GMC Denali 5.3L
- 2023 GMC Denali 5.3L
- 2024 GMC Denali 5.3L
- 2025 GMC Denali 5.3L
- 2026 GMC Denali 5.3L
- 2021 GMC Denali 6.2L
- 2022 GMC Denali 6.2L
- 2023 GMC Denali 6.2L
- 2024 GMC Denali 6.2L
- 2025 GMC Denali 6.2L
- 2026 GMC Denali 6.2L
Why Buy from Beefcake Racing?
Beefcake Racing is your source for serious ProCharger performance. We work with enthusiasts who want the right combination the first time, whether you're building a tow-ready street SUV or a heavier full-size setup that needs stronger power everywhere in the rev range.
When you order from Beefcake Racing, you get enthusiast-level product knowledge, honest support, and the kind of real-world experience that helps you choose the right supercharger system for your exact goals.
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
