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Procharger Stage II Intercooled Supercharger System - Complete Kit (03-04 Mach 1)

Market Price $7,503.90 You Save 17% ($1,250.56)
Our Price

$6,253.34

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  • Item 80821
  • MPN# 1FL212-SCI

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Features & Details

  • 60-70% Horsepower Increase
  • P-1SC Supercharger
  • 8-10 psi of Boost
  • Computer Chip Included
  • 3-Core Air-To-Air Intercooler Included
  • Designed for Stock Applications Only
  • Fits 2003-2004 Mach 1 Mustangs
More Horsepower! The stock Mach 1 Mustang came with a respectiable 300 Horsepower and 302 lb/ft of Torque from the factory, but after installation a ProCharger-equipped 4.6L Mach 1 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.

Complete Kit. The ProCharger Stage II Intercooled System comes 100% complete, and includes ProCharger self-contained P-1SC supercharger, air-to-air intercooler, intercooler tubing, brackets, 39 lb/hr fuel injectors, ProFlow bypass valve and a computer chip.

Application. This ProCharger Stage II Intercooled Supercharger System is specifically designed for use on the 2003 to 2004 Mach 1 GT Mustangs equipped with the 4 valve DOHC 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 support@americanmuscle.com with your Order Number in the Subject line, so the order can be processed.

Fitment: 2003 2004 Details

What's in the Box
Hardware included:
  • ProCharger P-1SC Supercharger
  • 3 Core Air-to-air Intercooler
  • Intercooler Tubing/Brackets
  • 39 lb/hr Fuel Injectors
  • ProFlow Bypass Valve
  • Computer Chip
Installation Info
Tech Specs
Specifications.
  • P-1SC self contained supercharger
  • Boost (PSIG): 8-10
  • Includes 3 Core Air-to-Air Inter Cooler
  • Includes computer chip
  • Includes 39 lb/hr fuel injectors
  • Includes ProFlow bypass valve
  • Includes intercooler tubing and brackets
  • Professional Installation Recommended
Will it fit my Mustang?
  • Mach 1 - 03, 04

Most Helpful Reviews

5/5
Awesome Power

I had Fastlane Motorsports in Benson, NC install and dyno tune. Got 450 rwhp and the stock clutch ain't going to last long with this. Already got a Spec stage 2+ coming. You want regret getting this for ...

Read More
Helpful (8)

5/5
Awesome power!

I bought mine a few years back before AM offered them. The install took about 6-7 hrs the pump and injectors took up must of that time. I did have another set of hands helping me out. I would recommend ...

Read More
Helpful (5)

Overall Rating 4.5 out of 5 stars
Read All 4 Reviews

Customer Photos (2) Submit Your Photo

View All 2 Photos

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15 Questions / 8 Answers

Ask a Question

Shaker This system still keeps the shaker system functional doesn't it?

AJmach1

  • Yes it does.

    GrabberBlueDrifter

Show 2 more answers Helpful (1)

Is an upgraded fuel pump a requirement with this kit, or will the stock one work just fine.

MaxAuto

  • The stock fuel pump would run with this Procharger Stage II Intercooled Supercharger System but it would be best to upgrade your fuel pump.

    Ricky36

Helpful (0)

Thinking about getting this for my 03 automatic. What other upgrades are required or highly recommended to go along with this so I don't have any mechanical problems in the near future.

Daniel

  • 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.

    Pat K

Helpful (0)

Is this kit carb leagal for california?

AngelG

  • This kit is not CARB legal for street use in California.

    KevinD92

Helpful (0)

Is it possible to upgrade the head unit to a bigger size, such as a D1 or F1 series?

MustangMach138

  • You would have to go directly through Procharger to go with an upgraded size.

    SalC7

Helpful (0)

Does this procharger kit come with a fuel pump as well

machery

  • The Procharger Stage II Intercooled Supercharger System (03-04 Mach 1) will not come with a fuel pump. A upgraded fuel pump is recommended if you increase boost with this kit.

    Ricky36

Helpful (0)

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Customer Reviews (4) Write a Review

Overall Rating 4.5

out of 5 stars

Installation Time:Weekend

  • Performance Gain 4.75 4.8
  • Fit 3.25 3.3



  • 5/5

    Installation Time: Shop Install

    July 13, 2012

    Awesome Power

    I had Fastlane Motorsports in Benson, NC install and dyno tune. Got 450 rwhp and the stock clutch ain't going to last long with this. Already got a Spec stage 2+ coming. You want regret getting this for your Mach 1

    Red66

    Year: 2003 Submodel: Mach 1 Roanoke Rapids, NC, USA

    Helpful (8)

  • 5/5

    Installation Time: Full Day

    June 02, 2012

    Awesome power!

    I bought mine a few years back before AM offered them. The install took about 6-7 hrs the pump and injectors took up must of that time. I did have another set of hands helping me out. I would recommend getting a dyno tune to realize the kits full potential.

    C1334

    Year: 2003 Submodel: Mach 1 Gulfport,MS

    Helpful (5)

  • 4/5

    Installation Time: Weekend

    December 25, 2014

    great kit but tough fit

    I have installed several roush and tvs style superchargers and the installs were very straightforward. While this is an awesome kit its not a plug and play setup. Stuff just did not fit where the directions stated it should go. With the help of a good mechanic I was able to get it all in and working. If your good with the tools then this kit is a great choice. Kit was installed in a 04 Mach1 auto trans. The power increase is dramatic, expect to be blown away. It slams you back into your seat. Im loving it!!

    patrickN

    Year: 2004 Submodel: Mach 1 Maui, HI, USA

    Helpful (2)

  • 4/5

    Installation Time: Weekend

    May 26, 2014

    Good proce for what you get

    This install was pretty straight forward. Had a few hiccups. They dont include a MAF sensor so be sure to get one. I run rich and fouled out my plugs in s day because of it. But it has so much power compared to stock. Cant wait to its tuned and running at full capacity. All the parts are pretty much built to somewhat fit. Most things have to be modified for your car even thought they says its for a Mach 1. A/c lines were the worst.

    imshakin

    Year: 2004 Submodel: Mach 1 Kaukauna, WI, USA

    Helpful (2)

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