Air and Fuel› Superchargers, Turbochargers and Components

ProCharger

Stage II Intercooled Supercharger System w/ P-1SC-1

$7,952.06

SKU: 1GI512-SCI

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Overview

The ProCharger Stage II Intercooled Supercharger System is a complete turnkey solution designed to deliver aggressive performance gains for 1999-2007 GM 1500 Classic trucks and SUVs. This system is equipped with the P-1SC-1 centrifugal supercharger and a 3-core vertical air-to-air intercooler. It provides 55-65%+ horsepower gains on 93 octane while maintaining factory-like drivability and long-term durability.
Show original supplier description
The ProCharger Stage II Intercooled Supercharger System offers a complete, turnkey solution for 1999-2007 GM 1500 Classic trucks and SUVs with 4.8L, 5.3L, and 6.0L engines. This system is engineered to deliver significant performance increases, providing 55-65%+ horsepower gains on 93 octane fuel, alongside enhanced towing power and smooth throttle response. At its core is the P-1SC-1 centrifugal supercharger, coupled with an advanced 3-core vertical air-to-air intercooler designed for optimal cooling efficiency and maximum airflow under boost. The Stage II system distinguishes itself with an 8-rib dedicated supercharger drive system for improved belt grip and boost stability, offering higher performance capability compared to standard HO systems. It comes as a complete package, including ECU and TCU tuning with a handheld programmer, fuel system upgrades calibrated for 93 octane, and a ProFlow blow-off valve. Installation is designed to be straightforward and reversible, with no permanent modifications required, offering 200,000+ miles of durability capability. Fitment is specifically for 1999-2007 GM 1500 Classic trucks and SUVs equipped with 4.8L, 5.3L, and 6.0L engines. While some listings indicate general fitment for these vehicles, it is crucial to confirm compatibility for specific trims and model years. The system is noted for its DIY-friendly design and low maintenance operation.
Vehicle Symptoms
  • Lack of power when towing heavy loads
  • Weak acceleration on highway merging
  • Engine feels sluggish under full throttle
  • Desire for better passing power on steep grades
  • Need for more torque in work truck applications
Relevant Conversations
  • ProCharger supercharger for 1999-2007 GM 1500
  • Stage II intercooled supercharger 5.3L Silverado
  • P-1SC-1 centrifugal supercharger kit for 4.8L
  • Best supercharger for 6.0L GM truck towing
  • ProCharger vs Vortech for 1999-2007 Chevy
  • How to install ProCharger on 2002 Silverado 1500
  • Supercharger horsepower gain 55% 93 octane
  • ProCharger system for 2004 GMC Sierra
  • Supercharger intercooler kit for 2006 Suburban
  • ProCharger 1GI512-SCI review and install

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandProCharger
Part Number1GI512-SCI
CategoryAir and Fuel
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