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Bama X4/SF4 Power Flash Tuner w/ 2 Custom Tunes (99-04 GT, Bullitt)

Market Price $449.99 You Save 11% ($50.99)
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  • Item 101200G99
  • MPN# 101200G99

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    Features, Video & Details

    • SF4/X4 is the Newest Replacement for the Popular SF3/X3
    • Improves Horsepower, Torque, Overall Performance, and More
    • Comes With Two Bama V2 Custom Bama Tunes - a $150 Value
    • Includes Datalogging w/ Unlimited Revisions to Guarantee Maximum Safe, Reliable Power
    • Free Tunes for Life!
    • On Screen Data Logging and Monitoring
    • Reads/Clears DTC Trouble Codes
    • Full Color LCD Display with Auto Dim Feature
    • Built-In WiFi for Easy Updates
    • PC/Windows Compatible Only
    • What Does BAMA Offer Tunes For? CLICK HERE
    • What More Information about the Free Tunes for Life Program? CLICK HERE
    • Custom Tunes Take 2-3 Business Days to be Written
    • Fits 1999-2004 GT and Bullitt Mustangs
    • Make Sure to Also Check Out Our Newest Tuner HERE!

    Review & Installation Video

    Review & Install Video

    Bama Custom Tuning at AmericanMuscle. Power. Performance. Personalized. Proven
    • Power

      1999-2004 GT and Bullitt Mustangs have dyno proven gains of 21 RWHP and 34 ft-lb's of Torque or more on Bama Custom V2 Tunes. By optimizing the air/fuel ratio and tweaking spark timing, a Bama Custom Tune is proven to squeeze out the extra horsepower Ford left on the table.

    • Performance

      Drastically enhanced throttle response and a much more aggressive throttle map will dramatically improve your Mustang's acceleration, shaving tenths off your quarter mile time while throwing you into the back of your seat every time you smash the gas. Automatic transmissions will see an even greater gain in acceleration and drivability, as the tune adjusts shift points and firmness.

    • Personalized

      For each and every Bama Tune, we ask you 19 questions about your specific Mustang, including your unique set up and intended use, in an easy to use web form. This information allows us to write an entirely custom tune just for your specific vehicle to ensure we deliver the most power and performance possible.

    • Proven

      Our Bama Custom Tunes are developed in-house on our Dynojet 224xLC chassis Dyno. Hours of research and development through street, track and dyno testing/datalogging left us with fully refined custom tunes. The Bama Performance team has exclusive access to our inventory of parts.

    2 Bama Custom Tunes:

    Free Tunes For Life

    Purchase a Bama Custom Tuned device, and anytime you make a change to your Mustang that requires a new tune, just let us know. Bama will create a new custom tune, and the files will be emailed straight to you.
    • Perf TUNE

      Performance Tune V2

      Designed for the aggressive daily driver or weekend warrior. Bama's Performance tune provides more power than the stock tune along with increased throttle response and improved shift firmness.


      Race Tune V2

      Designed for Race use. Bama's Race tune delivers maximum horsepower and torque with aggressive transmission settings and a sensitive throttle response. 93 Octane or higher fuel is highly recommended.

    **NOTE: Programming custom tunes may take 2-3 business days plus applicable shipping time. We recommend ordering other products separately to avoid delay. Heavily modified cars are not tunable with a mail order tune. Click for restrictions. Membership in the Tunes for Life program is valid for as long as you own the car that was originally tuned and is non-transferrable.

    Fitment: 1999 2000 2001 2002 2003 2004 Details

    What's in the Box
    • (1) SF4/X4 Power Flash Tuner
    • (1) One USB PC Interface Cable
    Installation Info
    Tech Specs
    Bama Custom Tuning at AmericanMuscle. Power. Performance. Personalized. Proven
    • Buy this Tuner & Submit your Mustang's Info
    • A Bama Performance Calibrator writes custom tunes just for your Mustang & Mods
    • Load 'em on your Mustang and GO!
    • As you add new mods, Bama will update your tune files for FREE!
      That's right, Free Tunes for Life!

    Power and Performance. Now you can add dyno proven gains of 21 Horsepower and 34 ft-lb’s of Torque and improve the overall performance of your 1999-2004 GT or Bullitt Mustang with a SCT X4/SF4 Power Flash Tuner that includes 2 Bama Custom V2 Tunes. By optimizing the air/fuel ratio, adjusting ignition timing and tweaking variable cam timing, a Bama Performance Custom V2 Tune will squeeze out the extra power Ford left on the table. Automatic transmissions will see an even greater gain in acceleration and drivability, as the tune also adjusts shift points and firmness.

    Increase Your Mod's Potential. From the factory, Ford programs their vehicles to cater to the needs of the daily driver, not the performance enthusiast who adds aftermarket bolt-on modifications in search of more power. When making performance mods, you will need to recalibrate the vehicle's computer to realize their full potential. A Cold Air Intake kit alone on a 1999-2004 GT will net around a 5HP gain, but couple it with a Bama Custom V2 Tune and see dyno proven gains of 30HP and 40 ft-lb’s TQ or more.

    Free tunes for life! Every customer that purchases a Bama Tuner is enrolled in the "Free tunes for life" program. Any time that you make additional mods to your vehicle, our team of SCT certified Bama Custom Tuners will create new tunes for you. Just send us a list of the part or parts you've added and we'll email the new tune files to you.

    Bama V2 Custom Tunes. When you order a SCT X4/SF4 Power Flash Tuner, you aren't just getting a tuner - you are getting the tuner and 2 dyno-tested custom V2 Tunes that are written specifically for your Mustang and your particular modifications by Bama Performance. Bama even includes datalog reviews to ensure your vehicle is fully optimized.

    • Performance V2 (87-93 Octane) - The Performance Tune offers a seamless blend of power, performance and drive-ability. Improving the overall driving experience of your Mustang, the Bama Performance Tune improves vehicle acceleration, increases power throughout the entire RPM and improves throttle response with revised timing, fuel, and VCT maps. Automatic equipped vehicles offer an aggressive shifting map to provide more aggressive transmission settings. This tune is suggested for the aggressive daily driver that is looking for more "get up and go".

    • Race V2 (91-93 Octane, E85, Race Fuel) - The Race Tune is designed for maximum performance and ensures the largest increase in vehicle performance. Using the highest grade of fuel available in your area is mandatory as timing, VCT, fuel, and throttle response settings are very aggressive. Automatic transmission settings implement entirely new shift points, torque converter changes and firmness settings designed for Track use.

    Nitrous (91, 93, E85, Race Fuel) - Our nitrous option can be added to any of our previously mentioned tune options, but only for 91, 93, E85, or Race Fuel.

    Technical Note About Fuel. Use of E85 will require larger fuel injectors such as Injector Dynamics ID1300 or Ford Racing 47lb/hr Injectors. Unleaded race fuel can also be used, but Stoichiometric points must be supplied.

    Compact Design. The SF4/X4 Power Flash Tuner measures in at 2.7” wide X 5.5” tall making it much smaller than the original SF3/X3 for easy storage in your center console or glove box. The cord is detachable and there is no battery or power supply needed. It uses the power from your vehicle's diagnostic port or computers USB connection.

    Full Color Display. The SF4/X4 Power Flash Tuner features a full color 2-3/4" diagonal LCD screen with user adjustable portrait or landscape modes. The SF4/X4 also has a convenient power saving auto dim feature.

    Built-in WiFi. The SF4/X4 Power Flash Tuner is now WiFi-capable meaning you will no longer have to plug it into your PC/Windows computer to receive the latest SCT firmware updates.

    Diagnostics. The SF4/X4 Power Flash Tuner can also be used as a diagnostic code reader. Save yourself hundreds of dollars each year by reading and clearing your own trouble codes rather than paying a dealer to do the same. Its as easy as a few simple steps.

    On Screen Data Logging and Monitoring. With a full color LCD display, the SCT SF4/X4 Power Flash Tuner makes it EASY to read the Built-In Data Logging or Real Time Monitored Vehicle Data, view popular sensor data such as EGT, Air/Fuel Ratio or any other 0-5 Volt source.

    Easy to load; easy to restore. When you load your custom tune on the vehicle, the tuner automatically stores your vehicle's factory settings. To return the vehicle to its factory settings, just plug the tuner back in, select the option to restore the factory settings, and you're done.

    Application. This SCT X4/SF4 Power Flash Tuner with two custom V2 tune files by Bama Performance is specially designed to fit the 1999-2004 GT and Bullitt Mustang's equipped with the SOHC Modular 4.6L 2 valve V8 engine.

    Programming custom tunes may take 2-3 business days plus applicable shipping time. We recommend ordering other products separately to avoid delay. Some heavily modified cars are not tunable with a mail order tune. Click for details.

    SCT SF4/X4 Power Flash Tuner Features:

    Chip/Handheld: Handheld Custom/Strategy: Custom
    Memory Size: 4 GB Custom Tunes Held: 10
    Year: 1999-2004 GT, 2001 Bullitt Model: SF4/X4 Power Flash Mustang Custom Tuner
    Manufacturer: SCT Special Features: Full color LCD display
    Built-in WiFi
    Will it fit my Mustang?

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    84 Questions / 76 Answers

    Ask a Question

    Will this correct speedo for a rear gear change


    • Yes this Bama tuner would be able to calibrate your vehicle for the gear change that you made to it.


    Helpful (2)

    I have a bolt on 99 GT ( intake, intake plenum, intake manifold, pulleys, offroad H, 4.10 gears ) would this be able to extract more whp then my current old revision predator u7146 with canned tunes?


    • The Bama X4/SF4 Power Flash Tuner w/ 2 Custom Tunes will be able to get you some more horsepower than the preloaded tunes yes!


    Helpful (1)

    Will Bama be able to tune for an Eaton TVS 1900 Supercharger on my 2002 Mustang GT?


    • Unfortunately, Bama does not tune for aftermarket superchargers.


    Helpful (1)

    can the Bama SF4/X4 be used to turn off theft system I have a 2003 mustang GT, I've had several occasions when car would not start due to theft system. I would like to bypass/turn off the theft system


    • We can disable this system within a custom tune upon your request.


    Helpful (1)

    Will this work after a engine swap? I own a 2000 Mustang GT 5 speed and was considering purchasing this tuner to wake it up some more. I am in the process of putting a new 4.6 SOHC motor in the car. If I buy this tuner and use it with the 4.6 already in the car will it work when I put the new engine in? The engine is just a rebuilt version of what's already in there.


    • The tuner would still work fine, there shouldn't be any issues with the tune working with a direct engine repalcement.


    Show 2 more answers Helpful (1)

    I live in California and the only gas available to me is 91. What kind of gains would i get if i use the tuner alongside an Araid Intake System? And will it still pass smog in California?


    People Who Bought This Item Also Bought

    Customer Reviews (100+) Write a Review

    Overall Rating 4.6

    out of 5 stars

    • Performance Gain 4.385827 4.4
    • Seat Of Your Pants Feel 4.34252 4.3
    • Ease Of Use 4.741177 4.7
    • Bang For Your Buck 4.413386 4.4
    • Preferred Tune: Performance

    • 3/5

      July 20, 2018

      Good tuner

      Works great and everything but it doesn’t offer a description, only the DTC number, on most of the codes my car has had and it could use some more helpful data monitor categories, such as AF ratio.


      Year: 2004 Submodel: GT

      Helpful (0)

    • 5/5

      July 17, 2018

      Wake up

      I like the bama tuner it worth the money. The tuner has awakened my car and now runs like it should. Im very happy with the tuner. would rec to anyone


      Year: 2004 Submodel: GT

      Helpful (0)

    • 5/5

      July 13, 2018

      The best thing to happen to my car

      I love my Bama X4. It woke my stang up from a sleep that it had from the time that I brought it. Thanks


      Year: 2003 Submodel: GT

      Helpful (0)

    • 4/5

      July 05, 2018

      Here it is

      Had to restart a few times to download program once it got past a point it loaded ok


      Year: 2003 Submodel: GT

      Helpful (0)

    • 1/5

      July 01, 2018

      Bama tuner

      sounded like there was detonation problems when I downloaded my custom tunes. Car lacked power. Made awful noise.


      Year: 2003 Submodel: GT

      Helpful (0)

    • 5/5

      June 19, 2018

      Great product

      Great product! Defenitely wake up the HP of the Engine


      Helpful (1)

    • 4/5

      June 17, 2018

      04 GT Tuner

      Extremely easy to use, other than initial update/setup. I noticed the enhancement as soon as I started the car. You can feel the change that quickly. I was really impressed with low end performance which I feel the 4.6 lacks tremendously. Thank you A.M./ Bama team.


      Year: 2004 Submodel: GT

      Helpful (2)

    • 5/5

      June 13, 2018

      Great product

      I got the Baka tuner with 3 preloaded tunes 1 performance 1 racing and one economic gas saver and it was well worth the 400$ I paid it grips harder and drives a lot faster than it ever has


      Year: 2004 Submodel: GT

      Helpful (1)

    • 5/5

      June 13, 2018

      Bama tuner

      Well worth the money definitely noticed an increase in acceleration and horsepower


      Year: 2003 Submodel: GT

      Helpful (2)

    • 5/5

      June 09, 2018

      Quick easy

      Awesome product love that you can mess with all the little details so you car can perform better


      Year: 1999 Submodel: GT

      Helpful (1)

    • 4/5

      June 03, 2018

      Easy to use and load tunes

      It is easy to load the custom tunes, but I do not like the way it bangs in and out of O/D and it holds in the gears to long, shift point need to be lower. I did not get the Personalized ID Plaque.


      Year: 2000 Submodel: GT

      Helpful (1)

    • 5/5

      June 01, 2018

      Mustang Gt 2004

      Great for the car, really feel the car awaken from a deep sleep and start smashing these ricers in the streets.


      Year: 2004 Submodel: GT

      Helpful (1)

    • 5/5

      June 01, 2018

      Increase in Ponies

      I was a little apprehensive but a call to AM calmed me down. I was talked through the install procedure and everything worked as described in the video. All I can say is WOW!! what a difference in the performance. Where were all those Ponies hiding. You got to get one of these tuners!


      Year: 2003 Submodel: GT

      Helpful (3)

    • 5/5

      May 30, 2018

      Buy it .

      I went back and forth about buying this tuner and honestly i recommend it . The guys over at AM Tuning are so helpful and actually do get back to you . I have nothing but good experinces so far , i had a annoying check engine light on my 2003 Gt because of longtubes and i did my research figured maybe the tune would help with the air/fuel ratio and it DID !


      Year: 2003 Submodel: GT

      Helpful (1)

    • 5/5

      May 17, 2018


      Ordered the Bama X4/SF4 power flash tuner with 2 tunes, and although I was not happy with the time frame of ten days to receive it, I was very happy with the results. I had been reluctant due to some reviews but it really woke up my little machine and I love the thrill !!!!! TFl


      Year: 2000 Submodel: GT

      Helpful (2)

    • 5/5

      May 14, 2018

      Bama SCT-X4 tuner

      I bought one of these for my '02 GT, as well as my '12 GT. If you have bolt-ons, no matter how many, they will squeeze every ounce of power out of them they can. These tuners made both of my cars feel and drive completely different. However, I will be honest. I'm not sure if they have changed it, but there was a 2-step function in the parameter settings. Do NOT use it, as it will cut fuel to limit engine speed for launch control and lean you out. If you want that function, buy a standalone like an MSD 2Step or a WOT box. Other than that, these tuners are fantastic, and you can't beat the free tunes for life membership. Despite what you (and I) have heard online and in forums, these are NOT canned tunes. They have a datalog function for a reason. Look at it this way- you can pay $200 for a single Lund, Steeda, etc tune, get no warranty, revisions, etc, or you can pay $150 for a lifetime membership, warranty, unlimited tunes/revisions, the best customer service of anyone out there and more. The choice to me was obvious! American Muscle is the top dog for a reason, and I will continue to shop with them in the future.


      Year: 2012 Submodel: GT

      Helpful (3)

    • 5/5

      April 27, 2018

      30 torque to the wheel

      Not bad for just a tune and a cold air intake 30 torque to the wheel


      Year: 2002 Submodel: GT

      Helpful (1)

    • 5/5

      April 08, 2018


      The tuner has brought out the beast in my car big changes compared to the car without a tune


      Year: 1999 Submodel: GT

      Helpful (1)

    • 5/5

      April 03, 2018

      More gains

      The tuner did what they said it would do and you can feel the difference in the performance. The price is high though for the tuner but overall definitely felt a difference in the performance.


      Year: 2001 Submodel: GT

      Helpful (1)

    • 4/5

      March 30, 2018

      Nice unit but needs more user info included

      I ordered the unit with the 2 Bama custom tunes. Unit looks nice and display is nice. Tunes loaded easy but came with absolutely 0 instructions whatsoever! I called am and they said they don't send instructions and that they are online and have to be downloaded and printed. What if you don't have a computer or access to one?? I have the Bama tunes which I'm in the process of working through tune datalogging to make adjustments with Bama. Other thing you should know is when you choose the Bama tunes you can't adjust any parameters on your own like idle etc. Bama has to rewrite a new tune for you with included changes you request. Bama has been helpful but the fact that I'm not that computer savvy I have to enlist my son to help with the datalogging and loading to the computer. Other problem is that They don't give you basic info on your tune like a/f ratio, revlimiter settings etc. Overall I think once I get my tune right and completely learn how to use it it will be a good tuner. I also have a diablosport intune for another vehicle and the sct is nicer but the intune comes with very thurough instructions for first time users. I performed a cam swap on my Bullitt which will be a bit difficult to get the tune right on the first shot which is understandable. Mine has random misfires at idle up to 1500 rpm and seems to be running Rich. Bama has been very helpful on the phone and says they will make adjustments as needed which is cool. The free tunes for life deal is Great!


      Year: 2001 Submodel: Bullitt

      Helpful (3)

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