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Procharger Stage II Intercooled Supercharger System - Complete Kit (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
  • Designed for Stock Applications Only
  • 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.

Technical Note. This Complete Supercharger Kit is designed to be used on stock applications, as Procharger will only provide a tune for the stock motor with stock exhaust or most aftermarket axle-back and cat-back exhaust systems. If your vehicle is no longer stock and has been upgraded with an aftermarket throttle body, cold air intake, headers, off-road mid-pipe, etc..., Procharger will not be able to provide a tune for your modifications. For modified vehicles, it would be best to purchase a Tuner Supercharger Kit so you can have a local Dyno Shop custom tune your vehicle with your aftermarket upgrades.

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


This is a very involved install. Make sure you follow the directions to the letter. From taking your gas tank out to change the fuel pump to cutting and grinding to make things fit. Had a great time working ...

Read More
Helpful (1)

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)

Overall Rating 5 out of 5 stars
Read All 4 Reviews

Customer Photos (4) Submit Your Photo

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28 Questions / 11 Answers

Ask a Question

Should I get my engine rebuilt before installing this? I have a 2001 GT, it's got 134,000 miles on it but theres nothing wrong with it and it hasn't been driven hard. Would it be a good idea to get my engine rebuilt first?


  • I think that you should probably have a few things checked like compression in the cylinders and a leak down test to see what condition the valves and guides are in.If there is a weak spot the super charger will find it. The rings and rod bearings take the brunt of the increased force as does the head gasket. If your engine is as tight as you say it is you may be ok. But check to be sure.


Show 2 more answers Helpful (11)

how much hp will this supercharger add? an number not 70%


  • 70% of 260 bud


Show 2 more answers Helpful (7)

supercharger do i need to remove my underdrive pulleys and go back to stock To install this supercharger


  • Absolutely! The underdrive is a plus when NA. But, when SC the UDPs are a negative as the blower spins slower. Plus the tune included is assuming that at a certain RPM and the provided pulley on the SC you are making at an approximate boost level. Also, the included belt assumes a stock engine damper/pulley. Put the stock pulley back on and sell your UDPs on Ebay. That's what I did when i went FI. By the way you will LOVE this centri blower. Makes boost linearly and is very easy to control vs the roots type. Easier on the internals. Better mileage, too. Good luck on your choice!


Show 1 more answer Helpful (1)

Would this be a good addition to a 155000 mile 02 mustang 4.6l with pi heads that has been very well taken care of ?


  • If the motor, transmission and other components are in good condition, this would be a great power adder. Since the vehicle does have 155,000 miles, we would highly recommend a compression test and leak down test to be sure of the motors condition.


Helpful (0)

My question is if i get a tune written for my car from procharger; I have a bama X4/SF4 (sct tuner) if i were to buy this kit, would they be able to write me a tune to were i could save and install the tune via the tuner i already have?? I have a few mods done to my car also so i would probably eventually have it dyno tuned. Main question is if id be able to utilize the current tuner i have to install a new tune from procharger?


  • The Procharger Stage II Intercooled Supercharger System will come with its own tuner and a base tune from Procharger. Additionally, BAMA is not constructing tunes for aftermarket superchargers at this time. If you choose not to use the Procharger provided tune, then a custom dyno tune would be required for safe operation of the vehicle. In this scenario, you could use the BAMA tuner to store additional tunes.


Helpful (0)

I have a 03 GT that was slightly modded before I got it. A cai, a heavy duty battery and I believe something done to the exhaust. Could I get this, have it installed by a shop and then have a tune made for this without having to buy stock parts for my mustang?


  • Hello! Pro Charger will not tune for an aftermarket CAI and certain exhaust work. You can get this kit and have it tuned by a local dyno shop, but Pro Charger recommend's their Tuner Kit for that.


Helpful (0)

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Customer Reviews (4) Write a Review

Overall Rating 5.0

out of 5 stars

Installation Time:Full Day

  • Performance Gain 5 5
  • Fit 3.5 3.5

  • 5/5

    Installation Time: Weekend

    May 17, 2017


    This is a very involved install. Make sure you follow the directions to the letter. From taking your gas tank out to change the fuel pump to cutting and grinding to make things fit. Had a great time working through the install with the old man. At the end of the day it was totally worth the time and effort. This kit really makes the 2 valve come alive. I couldn't imagine running with out it. From the sound to the power it makes. Getting some serious smiles per gallon.


    Year: 2000 Submodel: GT

    Helpful (1)

  • 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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