ATI 1GR302-SCI 07-13 4.8/5.3 Stage 11 Intercooled Tuner P-1SC-1

ATI 1GR302-SCI 07-13 4.8/5.3 Stage 11 Intercooled Tuner P-1SC-1

ATI 1GR302-SCI 07-13 4.8/5.3 Stage 11 Intercooled Tuner P-1SC-1

Please remember that the prices on our site are the Procharger Minimum Advertised Prices, Call 260 672-2076 

ATI 1GR302-SCI 07-13 4.8/5.3 Stage 11 Intercooled Tuner P-1SC-1 4.8 and 5.3 (8 rib & optional 10 rib dedicated drive)

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The Finer Details

Part Number: ATI 1GR302-SCI 07-13 4.8/5.3

Manufacturer: ATI ProCharger (Accessible Technologies Inc)

Condition: New

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ATI 1GR302-SCI 07-13 4.8/5.3 Stage 11 Intercooled Tuner P-1SC-1

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ATI 1GR302-SCI 07-13 4.8/5.3 Stage 11 Intercooled Tuner P-1SC-1

  • More Information

    Please remember that the prices on our site are the Procharger Minimum Advertised Prices
    Call 260 672-2076

    ATI 1GR302-SCI 07-13 4.8/5.3 Stage 11 Intercooled Tuner P-1SC-1

    4.8 and 5.3 systems come standard with a two core intercooler

    Stage II (8 rib & optional 10 rib dedicated drive) kits for 2007-13 GM truck
     Designed for modified applications but also compatible with stock vehicles, these new kits feature industry exclusive 8 rib dedicated drive systems as standard equipment. 


    For Electronic Throttle Control, Late 2007 And Newer

    ProCharger Tuner Kits
     HO Intercooled and Stage II Intercooled Tuner Kits omit tuning, injectors, and on some kits a fuel pump, but are otherwise identical to the complete system offerings.

    Stage 11 Supercharger Kits Available 55–60% HP Gain and Up To 825+ HP Max

    Like a rock? How about like a rocket ship! With the best bolt on horsepower and torque for your GM truck or SUV, that is exactly what you get with a ProCharger Intercooled System. Power gains of 55-65% on otherwise stock trucks and SUV’s make easy work of almost anything you can throw its way. And trips to the gas pump are made easier by fuel economy which is typically unchanged or improved under normal operating conditions.

    ProCharger Intercooled Systems for the 2007-2013 GM Truck & SUV offer industry leading 55-65% power gains on stock engines running pump gas at 8-9 psi (5.3/4.8) or 7-8 psi (6.0) of intercooled boost. For modified engines, Stage 11 Tuner Kits and higher boost levels are available. ProCharger’s American made 2007-2014 GM truck and SUV kits feature the patented and proven P-1SC self-contained supercharger and highly effective air-to-air intercooler system.

    *Includes: Silverado, Sierra 1500, Avalanche, Suburban, Tahoe, Yukon, Denali

      High Output Intercooled System with P-1SC-1 (4.8, 5.3)  8-9 psi  50-55% HP  2 core
      High Output Intercooled Tuner Kit with P-1SC-1 (4.8, 5.3)  specify  specify  2 core
      High Output Intercooled System with P-1SC-1 (6.0, 6.2)  8-9 psi  50-55% HP  3 core
      High Output Intercooled Tuner Kit with P-1SC-1 (6.0, 6.2)  specify  specify  3 core

    *Higher boost levels are available for modified engines.

    ProCharger High Output Systems

    The HO Intercooled Intercooled systems utilize the patented, proven and self-contained P-1SC-1 ProCharger, a compact supercharger drive system, a highly-effective, air-to-air intercooler, OEM-quality mounting brackets, fuel system upgrade, tuning and all necessary supercharger and intercooler tubes for installation onto your GM truck and SUV engine. ProCharger HO Systems come standard with a 2 core intercooler on 4.8L and 5.3L models; the larger 3 core intercooler is featured on the 6.0L and 6.2L model.

    ProCharger supercharger systems feature easy installation, minimal relocation of components, no need for external oil feed and return lines and avoids having to deal the complexity and maintenance issues of an air-to-water-to-air intercooler configuration. ProCharger systems for GM trucks and SUVs feature a visually appealing, “from the factory” look and come with a standard 3-year warranty on the intercooler and 1-year warranty on the supercharger (Optional 3-year supercharger warranty is available).

    Building a modified engine for your GM truck or SUV? An intercooled ProCharger Tuner Kit supports the highest boost and power levels in the industry. Give ProCharger a call to learn more.

    ProCharger 4.8, 5.3, 6.0, & 6.2 Systems and Tuner Kits

    • HO Intercooled System
    • HO Intercooled Tuner Kit

    ProCharger 4.8, 5.3, 6.0, & 6.2 Choices & Upgrades

    • Polished supercharger finish
    • ProCharger D-1SC supercharger upgrade
    • Helical Gear set for Noise Reduction (P-1SC & D-1SC only)
    • 3-Core Intercooler System Upgrade
    • Crank Pin Kit

    Installation Manual

    - See more at:

    *Higher boost levels are available for modified engines.


    This 8 rib & optional 10 rib dedicated drive belt system will allow a lot more boost to be run without having belt sliippage problems. Larger head units will be able to be used for those with modified engines.

    Front Inlet Option


    This system is designed to work with either the factory harmonic balancer or an aftermarket ATI Performance Products harmonic balancer. The crank pulley that is supplied is specific to the type of balancer you are using. This picture shows the crank pulley installed on the factory balancer.

    This picture shows the crank pulley installed on the ATI Performance Products  balancer pn#918635.

    The Most Power and Best Performance 
     Intercooled ProCharger systems deliver the ultimate performance and power increase for towing, daily driving and sport truck applications. Compared to all bolt-on aftermarket superchargers, ATI's superior technology delivers more low-end torque and substantially more total power than any other supercharger system. In the lower rpm towing range, Intercooled ProCharger systems will deliver more rear-wheel torque because the intercooled charge air is extremely dense (virtually at ambient temperature), the engine is running full timing, and the P-1SC consumes far less power than positive displacement superchargers. At mid-range and higher rpm, in addition to making more power per pound of boost (due to the same combination of greater air density, full timing and less parasitic load), an Intercooled ProCharger system is also able to safely produce more total boost, thanks to the coolest charge air and exhaust gas temperatures in the industry. The net effect is a substantially larger increase in air density, which in turn produces a substantially larger increase in power. History and physics show that applications without intercooling must run unsafe boost levels or octane-boosted fuel to perform even close to an Intercooled ProCharger system.

     Superior Efficiency and Fuel Economy Intercooled ProCharger supercharger systems enable your truck or sport utility to deliver unparalleled performance without sacrificing daily drivability or gas mileage. In fact, unlike inefficient positive displacement superchargers, in most towing applications your gas mileage may actually increase slightly thanks to the superior efficiency of the P-1SC ProCharger. Stock or modified, for towing, daily driving, or racing, Intercooled ProCharger systems deliver far more performance with far greater engine reliability than any other supercharger system or power adder such as nitrous oxide. 

     The Best Engine Reliability and Drivability 
     ATI introduced the industry's first intercooled supercharger system nearly 3 years before its nearest competitor, and is the only company that offers air-to-air intercooled supercharger systems for trucks and SUV's. Other companies' non-intercooled and air-to water supercharger systems are typically tuned at the edge of detonation, which leaves you little margin for error. However, because air-to air intercooling removes the heat which causes detonation, you can safely run far more engine-friendly intercooled boost with full timing and complete peace of mind. With air-to-air intercooling, there is no need for "band aids" such as ignition retard, over-rich or auxiliary fuel injectors, or water injection. There is also no need to buy exhaust gas temperature (EGT) gauges because intercooling means that exhaust and overall engine temperatures remain stable even during extreme towing, racing and/or summer heat conditions. The intercooler system, which is standard equipment, simply rejects far more heat than it will receive from the highly efficient P-1SC ProCharger. Intercooling is clearly the fundamental solution for reliable high performance, because it substantially improves both engine reliability and power output. That is why intercooled forced induction is the high performance technology of choice for millions of factory OEM vehicles worldwide.




    With the engine built to be blown, our low-compression 540 made 507 hp at 4,800 rpm and 606 lb-ft of torque at 3,200 rpm. Fully intercooled and boost set on kill, those numbers jumped to 913 hp at 5,800 rpm, with 903 lb-ft of torque at 4,800. The difference with the ATI ProCharger is huge, to say the least. Those numbers represent an increase of a solid 80 percent in horsepower and 49 percent in torque. That’s a ridiculous increase that would make your “seat of the pants” feel like a NASA space shutte launch!

    “When put into the [supercharger] system, an intercooler brings the air temp back down, thus increasing its density and removing the need to retard the timing. Reliable power gains go from 25-45 percent with a supercharger alone to 60-75* percent with an intercooler.”

    “Any time that you compress air, like with a supercharger, that creates heat, and heat is the enemy of horsepower. An air-to-air intercooler takes that hot blast of air and cools it down. This [Intercooled ProCharger system] will give you a 65% increase in power [with 8.5 psi]. That’s more than any other supercharger on the market.” 

    "Compressed air gets hot, but diverting it through the intercooler cools it down before it gets to the throttle-body."

    "A [chassis] dyno run demonstrated a maximum of 377.8 rwhp and 357.9 lb-ft of torque." (66% power gain, stock '02 5.3L Tahoe)

    “These intercooled ProCharger systems provide reliable 60-90 percent gains* in horsepower and torque on pump gas, with significantly better engine reliability than is possible when supercharging without an intercooler.”

    "The mildly modded 5.4 (2004 3V) received a ProCharger P-1SC centrifugal supercharger along with its air-to-air intercooler. The GMS crew reflashed the computer with Superchips Custom Tuning software, and the 5.4-liter SOHC motor now makes 420 rwhp and 410 lb-ft of torque." 

    “The driveability of the system was tested when we loaded down the truck with a 7,000-pound boat and trailer and a bed full of weekend boating gear, and traveled a couple of hundred miles over hilly highway toward The Lake of the Ozarks in humid 85-degree weather. Even under boost conditions, as the truck effortlessly pulled the weight up long hills for long periods of time, the engine’s coolant temperature never surpassed normal operating temperatures.” “Because of the extraordinary efficiency of both the ProCharger and intercooler systems, intercooled ProCharger systems feature the coolest intake temperature of any supercharger.”

    “Intercooled supercharging results in less stress on engine parts, lower engine temperatures, and better fuel mileage.”

    By using an air-to-air system, more boost can be applied to the motor without fear of detonation or the need for added fuel enrichment systems or ignition retarding.” 

     “In addition to denser air and full ignition timing, there is considerably less parasitic loss...”

    “What cuts down on a charger’s efficiency is a byproduct of compressing air - heat. When the air is compressed, it gets hotter. And the hotter it gets the less dense it becomes. You will still see power gains but the ignition timing has to be pulled back about 1 degree per pound of boost to keep the engine from detonating or pinging.” 

     “The intercooler (like a radiator for the air) brings the temp back down to around 20 degrees above the outside air temp.”

    “That’s a 2.33-second gain in the quarter-mile [with a stock 5.7 TBI] on pump fuel without sacrificing any driveability.”