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

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

$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
  • 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.

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 (6)

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 (4)

Overall Rating 4.5 out of 5 stars
Read All 4 Reviews

Customer Photos (2) Submit Your Photo

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12 Questions / 9 Answers

Ask a Question

Will the stock manual transmission work with this type of power? I was wondering if i would need to upgrade the transmission because it wont be able to handle so much horsepower?

TimmyTim97

  • The stock 3650 trans is great!! The real issues is the clutch. The stock one should hold up with 400hp. It really depends on how you drive the car. If you are shifting at real high rpm's, I'd go with a clutch upgrade.

    MachRMan

    Good Answer (1) (0)

Show 1 more answer Answer This Question I need this answered (0) (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

    Good Answer (0) (0)

Question Resolved

Will this work with the stock internals of the mach 1 since I know that the mach1 isn't equipped with forged internals. Will the engine last when daily drive it and race with it I'm looking to produce around 450 to 460 horsepower.

Comach

  • This should be fine, as long as the car isn't abused too much or pushed too far this kit will definitely be fine for some spirited daily driving and racing as well. 450hp is just about that fine line I don't recommend going much higher than that with the stock motor.

    SalC7

    Good Answer (0) (0)

Question Resolved

Other required mods? If I were to buy this do I need forged internals or is this something I could just bolt on?

OxfordMach

  • No need to forge your internals at all. The tune from Procharger works just fine on a stock car.

    patrickN

    Good Answer (0) (0)

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Does it work with auto transmission? I have a 2003 Mach 1. I'm looking for more power on the streets, but I'm a newbie at auto mechanics. Will this work compatibly with an auto transmission?

lalo08

  • Yes it will work with a auto Trans

    Taks

    Good Answer (0) (0)

Show 2 more answers Question Resolved

Procharger Gearset Is the gearset helical or straight cut?

shnaz23

Answer This Question I need this answered (0) (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 (6) (0)

  • 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 (4) (0)

  • 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 (1) (0)

  • 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 (1) (0)

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