2004 - 06 Pontiac GTO Street


  High Output Intercooled System with P-1SC-1  7 psi  50%  GTO
  High Output Intercooled Tuner Kit with P-1SC-1  specify  specify  GTO


High Output Intercooled Supercharger–525+ to over 800+ HP

The HO Intercooled ProCharger system for LS2 and LS1-powered 2004-06 GTO’s produces a 50-55% power gain on stock motors running pump gas, with 7 psi of intercooled boost. This compares to competing systems which produce 29-40% horsepower gains with the same 7 psi, but without ATI's superior supercharger and intercooler technology.This system installs in approximately half the time of other systems, with no need to punch a hole in the oil pan, replace the engine intake, or deal with all the complexity of an air-to-water-to-air intercooler. This new ProCharger system also has a much more attractive and "OEM" appearance than others for the GTO. Additionally, with the coolest charge air temperatures available, the HO Intercooled ProCharger system for the GTO produces not only the industry’s undisputed largest power gains, but also the best engine longevity.

Standard equipment includes an exclusive air-to-air intercooler system and a patented self-contained P-1SC-1 supercharger, with 3-year warranty available. This new product utilizes the same proven technology as the industry-leading Intercooled ProCharger systems for LS1 F-bodies and C5 Corvettes.

Tuner Kits: The Intercooled Tuner Kit is identical to the complete system, but omits fuel injectors and computer programmer. Higher boost and power levels are available for modified engines. Call today for more information.

ProCharger 2004 - 06 Pontiac GTO Systems and Tuner Kits

  • 2004: HO Intercooled System and Tuner Kit (dedicated 8-rib drive)
  • 2005-06: HO Intercooled System and Tuner Kit

ProCharger 2004 - 06 Pontiac GTO Choices & Upgrades

  • Polished supercharger and bracket finish
  • ProCharger D-1SC supercharger upgrade
  • Helical Gear set for Noise Reduction (P-1SC-1 & D-1SC only)
  • 1,300 HP GTO Race Intercooler Upgrade (minor modifications required)

California Emissions Compliance info (CARB)

The following system meets California emissions regulations and is available for street use.

2004 Pontiac GTO (5.7L)
DescriptionHp GainMax BoostPart #EO #
HO Intercooled System with P-1SC-1 supercharger50%7 psi1GN212-SCID-365-6

2005-2006 HO Systems and all Tuner kits and Race kits for this vehicle are NOT legal for street use in California . These products are intended for racing or off road applications only.

For pricing, please see MSRP price pages at the end of our catalogs, use our dealer locator, or give us a call at (913) 338-2886, M-F, 8:30a to 5:30p, CDT.

ProCharger 2004-06 Pontiac GTO supercharger Kit Info:

Click below to read more about these supercharger kits: