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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
    • (1) One Personalized ID Plaque
    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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    77 Questions / 7 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)

    Would this tune help with front o2 sensors for air/fuel , i have bbk longtube headers. I have this annoying check engine light saying slow response or sometimes i get that its running lean , i already ruled out all possible reasons why i would get this code and i know that with long tube headers the o2 sensors are further down so they dont warm up as quick or something like that .. Would this tune adjust the air/fuel ratio for my headers and get the light off ?


    People Who Bought This Item Also Bought

    Customer Reviews (100+) Write a Review

    Overall Rating 4.6

    out of 5 stars

    • Performance Gain 4.375 4.4
    • Seat Of Your Pants Feel 4.354167 4.4
    • Ease Of Use 4.751037 4.8
    • Bang For Your Buck 4.408333 4.4
    • Preferred Tune: Performance

    • 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 (1)

    • 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 (2)

    • 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 (2)

    • 5/5

      March 25, 2018


      This tuner is by far the best mod I’ve bought it took awhile to get bc everyone getting spring mods but deff worth the wait Car is 100 better and not as slow as a normal 2v would feel ,should’ve bought this a long time ago


      Year: 2001 Submodel: GT

      Helpful (3)

    • 5/5

      March 09, 2018

      Great power difference

      Works great with the custom tunes and bolt ons. Noticeable power difference


      Year: 2002 Submodel: GT

      Helpful (3)

    • 5/5

      March 08, 2018


      So far I am enjoying this tuner, it added a lot of pep to my 04' GT. Still learning everything it can do, but the immediate result with my custom race 93 tune was night and day from the stock tune. It also got rid of my CEL, which was a huge bonus.


      Year: 2004 Submodel: GT

      Helpful (4)

    • 3/5

      March 07, 2018

      Bama X4 power flash tuner..........worth it?

      Nice product, all things considered, a bit pricey. Very easy installation. But I must say, not that much of difference from stock setting. One thing I really dislike is that transmission bangs into and out of overdrive. Not a good thing.


      Year: 2001 Submodel: GT

      Helpful (3)

    • 5/5

      February 28, 2018

      Excellent Purchase

      Great purchase for extra hp and throttle response. Only had one installation download error which turned out to be a weak car battery. Replaced it and the installation was a breeze. I have already recommended this tuner to other friends looking to add extra horses to their project cars.


      Year: 2003 Submodel: GT

      Helpful (2)

    • 5/5

      February 02, 2018

      Never wanna go take off work the tune

      Ever since I hooked up my mustang Gt to the Bama tune I never wanna take it off. It can with two custom tunes one for performance and one for racing. Obviously I have it on the race tune and I noticed a huge difference. The car is way better and I recommend getting a tune


      Year: 2002 Submodel: GT

      Helpful (3)

    • 5/5

      February 02, 2018

      Great bang for the buck.

      I could not be happier with my Bama x4/SF4 tuner. My gt was mostly stock except for exhaust, and underdrive pulleys. After loading the race tune and driving about 50 or so miles I decided to jump on it. I was very very surprised at the noticeable difference such a simple mod had made. I am very happy with this purchase.


      Year: 2004 Submodel: GT

      Helpful (5)

    • 5/5

      January 24, 2018

      Tuner works awesome

      Well I bought the tuner a been running the 93 octane tune for a few weeks and I’ve gotta say I am impressed helped liven the cars throttle up as well as harder but crisper shifts and even improved the sound a bit I’d say anyone who’s looking to start modding their 99-04 gt should definitely get this tuner


      Year: 2003 Submodel: GT

      Helpful (3)

    • 4/5

      January 19, 2018

      2002 mustang gt

      Really helped throttle response and shift firmness. Also corrected my speedometer since I put 4:10 gears in car. One issue I have is that my theft light flashes on dash for several minutes every time I start the car after I loaded the tune.


      Year: 2002 Submodel: GT

      Helpful (3)

    • 5/5

      January 06, 2018


      great product, just trying to get my tune nice and perfect.


      Year: 2000 Submodel: GT

      Helpful (4)

    • 3/5

      January 04, 2018

      To much money

      Product is good. could be easier to install. You should have to have a windows 8/10 computer to download. See slight improvement in performance. Definitely wouldn't buy for 400$


      Year: 1999 Submodel: GT

      Helpful (2)

    • 5/5

      January 03, 2018


      Was just Amazed by the way the 87 tune changed the behavior on my 2001 Mustang GT. Like driving a different vehicle. Thottle response, shift points, jump off the line all improved. All stock except cold air intake and cat delete with flowmaster 44's. Very happy with this product, worth every penny.


      Year: 2001 Submodel: GT

      Helpful (4)

    • 4/5

      December 28, 2017


      This product is a must for a mustang owner. I mainly got it for diagnostics and to recalibrate the speedometer because of a rear gear change. I downloaded the 91 octane tune before I changed the rear gears and I could feel the difference in first and second gear immediately.It also had quicker throttle response and idled a lot smoother.


      Year: 2004 Submodel: GT

      Helpful (2)

    • 4/5

      December 22, 2017

      Great for daily drivers!

      If your looking for a base line tune this is the way to go! Device is easy to use and tunes does the trick for daily driving!


      Year: 2000 Submodel: GT

      Helpful (3)

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