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Procharger Stage II Intercooled Supercharger System (99-04 GT)

Market Price $6,758.90 You Save 17% ($1,126.31)


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  • Item 80818
  • MPN# 1FE212-SCI

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Features & Details

  • 60-70% Horsepower Increase
  • P-1SC Supercharger
  • 8-10 psi of Boost
  • 3-Core Air-To-Air Intercooler Included
  • CARB EO # D-365-5
  • Fits 1999-2004 GT and Bullitt Mustangs
More Horsepower! The stock GT Mustang came with a decent 260 Horsepower and 302 lb/ft of Torque from the factory, but after installation a ProCharger-equipped 4.6L GT Mustang can make 60-70% more horsepower at the flywheel. Thanks to the industry’s coolest charge air temperatures, the unmatched power gains are delivered with maximum reliability and everyday drivability.

High Capacity Intercooler. If you have the desire to continue modding your Mustang even after adding a ProCharger Supercharger, then this is the Kit for you. The 3-core air-to-air intercooler included with the Stage II Kit has a higher capacity than the High Output (HO) Kit. This Stage II kit will accommodate additional modifications as you continue to transform your Mustang into the highest horsepower beast possible.

Supercharger Kit. The ProCharger Stage II Intercooled System comes 100% complete, and includes ProCharger self-contained supercharger, air-to-air intercooler, intercooler tubing, brackets, 39 lb/hr fuel injectors and ProFlow bypass valve.

CARB Certified. Best of all this ProCharger High Output Intercooled Supercharger System is 50-state smog legal under CARB EO # D-365-5.

Application. This ProCharger Stage II Intercooled Supercharger System is specifically designed for use on the 1999 to 2004 GT and Bullitt Mustangs equipped with the 2 valve 4.6L modular engine.

Please Note. Procharger Supercharger Systems are built to order for our customers and accordingly, we require you to submit additional information about your vehicle using this form. Because of this there is a 14 day lead time on orders once your information is received.

Once the Customer Information Form is filled out, please email it to with your Order Number in the Subject line, so the order can be processed.

Fitment: 1999 2000 2001 2002 2003 2004 Details

Installation Info
Tech Specs
  • P-1SC self contained supercharger
  • Boost (PSIG): 8-10
  • Includes 3 Core Air-to-Air Inter Cooler
  • Includes 39 lb/hr fuel injectors
  • Includes ProFlow bypass valve
  • Includes intercooler tubing and brackets
  • Professional Installation Recommended
Will it fit my Mustang?
  • Bullitt - 01
  • GT - 99, 00, 01, 02, 03, 04

Most Helpful Reviews

Simply AMAZING!!!

I LOVE my Procharger on my 2002 Mustang GT! Putting down 412 RWHP and 419 FT LBS of torque on a moderate tune right now I couldn't be happier! Installation was a huge pain In my butt lol there was plenty ...

Read More
Helpful (5)

great product

super easy to install, no problems at all and made my car 2x faster

Helpful (1)

Overall Rating 5 out of 5 stars
Read All 3 Reviews

Customer Photos (4) Submit Your Photo

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20 Questions / 6 Answers

Ask a Question

What upgrades do i need for my mustang when i install this cause mine is completely stock


  • This procharger system will be a 100% complete kit. This will come with everything you need to safely bolt up to your car!


    Helpful (1)

Would this procharger set up work with the pypes the beast exhaust?


  • Hi, Yes this pro charger will work with the pypes the beast off-road exhaust system.

    Chris J

    Helpful (0)

Would this application work for a 2003 Lincoln Towncar with essentially the same engine as the 2003 Mustang GT (i.e., 4.6L 2V). What other modifications would be required? Thanks in advance. Steve


  • While the Lincoln Towncar has the same 4.6L engine as the Mustang, we have only tested this item out on Mustangs. Additional modifications would vary depending on the vehicle, please contact Procharger who can give you a definite on whether this will work in a Lincoln Towncar.


    Helpful (0)

What happens if i already have a NOS kit? I have a 2002 GT, the engine is still pretty much new (only 30,000 miles on it).Will it be possible to use both the procharger and the NOS? Will I have to buy any extra parts so my car can handle all that HP? I'm not sure if that much pressure will damage my engine (still want to use her as my daily drive) or will I have to do something to my back axle to handle the HP?


  • Nitrous Oxide can be used in forced induction systems to further cool the air in the intake track. It will depend on the amount of boost and the shot of nitrous you plan to use, and that would be something that will also depend on the supporting modifications on your vehicle. We would highly recommend speaking to your tuner regarding your specific application for details.


    Helpful (0)

is the unmodified stock automatic trans able to handle the extra power


  • Yes, The stock automatic transmission will be able to hold up to the Procharger Stage II Intercooled Supercharger System (99-04 GT).


    Helpful (0)

Will this work with my 1996 GT? About a year ago my stock motor failed in my 1996 GT. Instead of fixing the old motor I opted to buy a 1999-2004 PI crate motor from Ford, with a few minor modifications it was a fairly easy swap. Since then I have installed a set of Comp Cams Stage II extreme energy cams, a set of BBK shorty headers, a BBK off road H-pipe (so no catalytic converters), a SR CAI, and the BBK 78mm throttle body plenum unit and have the ITSX wireless flash programmer with new tune installed. Also a set of 3.73's in the rear. Will this Procharger work with my car since my motor is the newer PI motor? Essentially other than the body style and the computer I am running a 1999-2004 Mustang GT. If your just guessing, please don't answer as $5,000.00 dollars is a big investment to waste on a guess! Thanks!


  • This kit will not be a direct bolt on. It will work for you but you will have to modify the mounting points of the kit, get a custom dyno tune, and the routing for some of the piping will have to be modified as well.


    Helpful (0)

Customer Reviews (3) Write a Review

Overall Rating 5.0

out of 5 stars

Installation Time:Full Day

  • Performance Gain 5 5
  • Fit 3.666667 3.7

  • 5/5

    Installation Time: Weekend

    March 05, 2014

    Simply AMAZING!!!

    I LOVE my Procharger on my 2002 Mustang GT! Putting down 412 RWHP and 419 FT LBS of torque on a moderate tune right now I couldn't be happier! Installation was a huge pain In my butt lol there was plenty of blood sweat tears and swear words involved, but it was so much more worth it in the end! The tune that it comes with from diablosport does run a little bit lean, so I would make sure before you buy the kit that you can take it up to have it Dyno tuned soon after the install. Also, the fuel pump that is included in this kit is a little bit better than the stock pump, but it still does not do the job that is required from the 39# injectors that come in the kit as well. So buy a Kenne Bell Boost-a-pump to make sure that the engine is getting the required ammount of fuel it needs. ALSO, the kit isn't just drop in and go. At least on my car, there were some very tight fits that needed to be grinded down or cut off, etc. it's not a very easy job! Just keep that in mind. But overall, I seriously could not be happier! Totally worth the money, and I wiould defiantly recommend it to anybody looking to boost their New Edge GT.


    Year: 2002 Submodel: GT Las Cruces, NM

    Helpful (5)

  • 5/5

    Installation Time: Afternoon

    May 18, 2016

    great product

    super easy to install, no problems at all and made my car 2x faster


    Year: 2003 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Full Day

    December 05, 2012

    proCharger Stage II Intercooled Supercharger System

    i installed this procharger my self there was a few unessesary words involved but i got her in and boy did i not regret it. this procharger really have me a diffrence lets just say it made my dream come true to have a 9.6 second car.


    Year: 2001 Submodel: GT

    Helpful (16)

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