2006-2004 PONTIAC GTO (LS1, LS2)

When GT was reborn in 2004, Pontiac enthusiasts now had an LS-powered performance car to amp up for the beast of the Firebird in 2002. Equipped with both the LS1 (2004) and LS2 (2005-06) engines, ProCharger once again leads the way with air-to-air intercooled supercharger systems and tuner kits for these unique GM performance cars.

Utilizing 7 psi of intercooled boost, a ProCharger System for LS1-equipped GTOs produces a 50-55% power gain on otherwise stock engines running high quality pump gas. Built around the ProCharger P-1SC-1 supercharger and a dedicated, 8-rib drive, the system comes 100% complete, including the front-mounted air-to-air intercooler, fuel injectors and a hand-held programmer.

Tuner Kits: These kits make sense for someone wanting to perform custom tuning of the car and push the envelope in performance.  Will most likely be experimenting with alternative fuels such as 93 octane, race fuel, E85 fuel, and methanol supplemental fuel.  In addition, possibly changing engine components like heads, headers, exhaust, and cams for the engine. No tuning or fuel components provided.

Want to learn about HO vs. Stage II, Tuner Kits vs. Systems, Intercooling tech and much more? Click the button below to visit the ProCharger 101 page.

With slightly higher compression than their LS1 predecessors, ProCharger Systems for LS2 powered GTOs run 6 psi of intercooled boost for 50% power gains on otherwise stock engines running high quality pump gas. ProCharger’s LS2 systems and tuner kits feature a front-mounted, air-to-air intercooler, P-1SC-1 supercharger and a dedicated 8-rib drive.

Tuner Kits: These kits make sense for someone wanting to perform custom tuning of the car and push the envelope in performance.  Will most likely be experimenting with alternative fuels such as 93 octane, race fuel, E85 fuel, and methanol supplemental fuel.  In addition, possibly changing engine components like heads, headers, exhaust, and cams for the engine. No tuning or fuel components provided.

Want to learn about HO vs. Stage II, Tuner Kits vs. Systems, Intercooling tech and much more? Click the button below to visit the ProCharger 101 page.

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)

Looking to make a purchase or a shop to install? We have a large group of dealers ready to serve you with your ProCharger needs. Click below to find a dealer near you!

Kits starting at $7,598. Pricing on these units vary by configuration. Configure your purchase now.

PLEASE NOTE: Pricing on this website reflects the June 30, 2022 Application Price Guide. No surcharges are currently in effect.


Click to call our sales staff or email us if you need any help. We will be happy to assist you with any questions you may have.

Mon – Fri 8am – 5:30pm CST
Phone – (913) 338-2886
Sales Email – [email protected]

Our catalogs feature much of this detail. You can either download a copy or have one mailed to you free of charge.

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. California approved products for street legal use (complete systems) will have an associated CARB EO# for compliance. For a full list of California and 50 state street legal systems, click below.