SCT 4 Program Chip Performance Computer Chip 1989-2004

SCT: 6600
CJ's Low Price:
Computer Code
Cold Air Kit
Brand of Cold Air Kit
Gear Ratio
Tire Size
Catalytic Converters
Octane Requested
Modifications 1
Year of Car
Engine Size
1454889600 29890
Earn 271 RPM Points What's this?
SCT 4 Program Chip Performance Computer Chip 1989-2004

Product Description


Upgrade your 89-04 Mustang with this performance chip. The chip will add horsepower to your Mustang and accomodate for performance changes you have made such as changing rear gears, exhaust, intake, cam and more! The chip will come with one custom tune from us.

In order to program your chip, we will need the computer code for your Mustang and the modifications done to the car. Please make a note of this information while you are checking out.

Click Here for help locating your computer code.

We are unable to provide tunes for customers outside of North American because of fuel differences.

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Installation Instructions

Mustang Installation

Mustang Applications

This product will fit the following Ford Mustang years:

Product Reviews

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Product Questions


is this just a buy and plug in chip or will i need to get it tuned? if so what types? and how many tunes?

Asked by: Samplebridge
It is plug and play and will come with one tune that is created based upon the information that you fill out in the required fields,
Answered by: CJPP Dave
Date published: 2016-01-13

bought a 95 Mustang GT.  the care ran excellent until we removed the cats and put on headers.  i have been told that with those mods that I would need a tune or a new chip.  What is your take on that?  will your chip fix the problem?

Asked by: JHarryPope
removing the catalytic converters does need a tune because it messed with o2 sensors and headers could, but mostly the cats.
Answered by: Samplebridge
Date published: 2016-01-06

Hi I have an 89 mustang 302 in my 65 mustang but I want to add a supercharger can you tune for it?

Asked by: Assassinx1
You would have to locate a shop that can do custom tuning in your area and have it custom tuned.
Answered by: rk cjpp
Date published: 2016-01-05

I have an 1989 306 with E303 cam, bbk ssi intake, ram air, long tube headers and flowmasters with no cats, summit billet distributor, 373 gears, msd 6AL, a/c delete. Can this chip and your tune accommodate all this? It is going into limp mode right now

Asked by: Tim89gt
You can use this chip and take it to a local tuner and have it custom tuned.
Answered by: rk cjpp
Date published: 2015-12-09

I do not know the cam in the stang and I know its not stock so Do I really need to know for the tune?

Asked by: No Nag
That is vital information that is needed to reap the full benefits of a tune.
Answered by: CJPP Dave
Date published: 2015-10-19

Will this work with a 5psi supercharger, 331 light weight stoker,neutral balanced , Roush 215 heads, comp cam 35-556-8 2200 to 6200 rpm hyd roller, 75 mm throttle body 80mm mas air meter 47lb injectors, l close ratio Gforce T5, off road exhaust,

Asked by: SlowStang
Yes, it'll work on any 1989-2004 Mustang. Just tell us the mods and we'll give you a tune.
Answered by: CJ Pony Parts
Date published: 2015-08-31

will this chip disable the "pats" system 

Asked by: shawnpaul459
I don't believe so. From what I understand, this only affects performance variables.
Answered by: CJ Pony Parts
Date published: 2015-08-21

My question is can you flip it on the go without the check engine light coming on and causing the car to run like poo? if not my problem is fixed, if the chip is designed to do that what do I need to do?

Asked by: jbrown97
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