ProCharger Stage II Intercooled Tuner Kit w/ P-1SC-1 - 1GP304-SCI 2006-2013 C6 Corvette Z06

Features

• High Output Intercooled System
• 40%+ HP gain with P-1SC-1 at 4.5 psi and High Quality Pump Gas
• Produces the Coolest Charge Air Temps and Largest Power Gains
• Standard: Satin Finish Head Unit/Bracket
• Standard: Unfinished Manifold and Cover
• Retains Factory Brake Cooling Ducts
• Dedicated 6-Rib Belt Drive
• Bolt-On Installation
• All Necessary Hardware for Installation

Kit Contains:

• Head Unit: P-1SC-1 (Standard Unit)
• Boost Level: 4.5 psi
• Intercooler: Stage II Air to Air
• Tube Diameter: 3 / 3.5 Inch
• Bypass Valve: ProFlow (Standard Unit)
• Tuning: Tuning Supplied

Optional Features:

• Head Unit Upgrade
• Black or Polished Supercharger Head Unit
• Black or Polished Supercharger Bracket
• Helical Gearset for Noise Reduction
• Intercooler Upgrade
• 8-Rib Dedicated Drive Upgrade

The ProCharger 1GP304-SCI Stage II Intercooled Tuner Kit is designed for the 2006–2013 C6 Corvette equipped with the 7L LS7, providing a high-performance foundation for custom forced-induction builds. The kit features a P-1SC-1 self-contained centrifugal supercharger, C6-specific 3-core air-to-air intercooler, ProFlow bypass valve, and dedicated 6-rib supercharger drive system. Unlike the complete Stage II system, the 1GP304-SCI does not include fuel components or a preconfigured ECU calibration, allowing the builder or professional tuner to determine the appropriate fuel system, boost level, and calibration for the specific vehicle and power goals. 

The self-contained P-1SC-1 requires no connection to the engine's oiling system, while the front-mounted C6 3-core air-to-air intercooler efficiently cools compressed air without requiring an aftermarket hood or major body modifications. The tuner configuration is particularly well suited to modified LS7 applications using upgraded fuel systems, custom calibrations, alternative fuels, or additional engine modifications such as heads, headers, exhaust, and camshafts.

With customizable boost, fuel delivery, tuning, and supercharger options, the 1GP304-SCI offers a versatile platform for enthusiasts looking to build beyond the limits of a standard off-the-shelf supercharger system. Its Stage II dedicated drive and air-to-air intercooling make it an excellent foundation for higher-power C6 Corvette builds while retaining the efficient centrifugal power delivery and clean installation associated with ProCharger systems. 

Bullet Bypass Valves Recommendations:

700 HP OR LESS

• ProFlow Valve: The ProFlow valve is the standard surge valve option for our street supercharger systems and kits. Compact in size, it can be fitted into tight spots when space is limited. Its butterfly valve is extremely durable and reliable, and this design creates a straight airflow path which acheives excellent flow for its size.
• Bullet Valve: This surge valve's compact design also makes it fit easily in tight spaces. It comes in both an open and closed format. The closed format allows you to recirculate air back into the system, or instead to run to an air filter to minimize noise.

701-1200 HP

• Race Valve: This is the industry leading surge valve for both street and race applications. The larger valve diameter is designed for high flow applications.

OPEN VS. CLOSED BYPASS VALVES

• Open - Vents to atmosphere and creates a distinctive “whoosh,” when the throttle blade suddenly closes, which a lot of people enjoy the sound.
• Closed - Vents to an external air filter or an internal tube for rerouting excess boost pressure back upstream of supercharger for a more quiet and subtle sound. More ideal for street applications where someone wants more of a silent or stealth operation of the supercharger.

For street applications, our complete systems and tuner kits come with the proper bypass valve based on the vehicle's horsepower output level so, no need to worry about the right one. However, ProCharger does offer upgrade options for their Systems and Tuner Kits with their Race bypass valve family for those seeking a little more sound or those that like the cool look of the anodized finish of their Race bypass valves.

Note: 2009-2013 models require water pump modification

Note: Race intercooler option requires oil cooler relocation

Part Number: 1GP304-SCI