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

Market Price $459.99 You Save 13% ($60.99)
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  • Item 101200G99

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Ship to: Ashburn - 20149
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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.

    Bama Performance

    Fitment: 1999 2000 2001 2002 2003 2004 Details

    MPN# 101200G99

    CA Residents: WARNING: Cancer and Reproductive Harm -

    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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        Questions & Answers (116)

        5 Top Rated Questions

        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 (4)

        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 (3)

        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.

        Helpful (3) Show 2 more answers

        Hello. I need to replace my battery. I was wondering if my tune would erase or what happens if I need to disconnect my battery?

        • The tune would not be affected if the battery is replaced or disconnected.

        Helpful (2)

        Can this product correct the speedometer on a 2000 Mustang GT when it reads high due to running a smaller tire size?

        • This indeed will help correct for changes from the stock wheel and tire size.

        Helpful (1)
        Post Your Question
        10 More Questions
        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? 1 answer
        Will Bama be able to tune for an Eaton TVS 1900 Supercharger on my 2002 Mustang GT? 1 answer
        Does this work with a stock 2000 mustang GT 0 answer
        Can u tell me is there a tuner that would be compatible with an Apple computer? 1 answer
        Would this tuner do anything to a stock 2003 mustang gt? 0 answer
        How well does this work with mild cams, patriot heads? 1 answer
        Does Bama have tunes for boosted applications? or is that something that will still need to be done at a shop? 1 answer
        Can us it reset my computer back to stock that has another tune it has that i didn’t know it had 1 answer
        Will this tuner clear my check engine light due to not having cats? I have Mil eliminators but they are not working currently and plan on getting a tuner but don't want to get more mil eliminators if I can clear the check engine light with a tuner. 1 answer
        Is this married? 1 answer

          Customer Reviews (100+) Write a Review

          Overall Rating 4.6

          out of 5 stars

          • Performance Gain 4.356643 4.4
          • Seat Of Your Pants Feel 4.305263 4.3
          • Ease Of Use 4.731707 4.7
          • Bang For Your Buck 4.370629 4.4
          • Preferred Tune: Performance

          • 5/5

            September 15, 2019

            Awesome tuner!

            This tuner is very customizable. You can change injectors size and more right through the options. However, do NOT do like I did and try the demo mode. Took me quite a bit of time and several phone calls to get it fixed.


            Year: 2001 Submodel: GT

            Helpful (0)

          • 5/5

            August 28, 2019

            Great product and works good

            Easy and fun to install! I definitely feel like my mustang is back to life


            Year: 2000 Submodel: GT

            Helpful (0)

          • 4/5

            August 19, 2019

            Great tuner

            It's a great tuner noticeable power and shifts way better than stock!! It's easy to use and live data log and live gauges.


            Year: 2003 Submodel: GT

            Helpful (0)

          • 5/5

            August 18, 2019

            Bama x4/sf4

            Love this item. Shipping was on time. Thus is allot better then the super chip I had. Can wait to get to my first custom tune.


            Year: 2002 Submodel: GT

            Helpful (0)

          • 5/5

            August 18, 2019

            Great Customer Service

            Needed a tuner to turn my PATS off after a auto trans conversion, BAMA did just what I wanted


            Year: 2002 Submodel: GT

            Helpful (0)

          • 4/5

            July 28, 2019

            tuning my 04 sohc 4.6l GT

            I had previously spoken with Justin Bama tune specialist and explained I was having a problem with the tune for my car and he suggested that I try to return to the factory tune and then contact him and we would work on getting my car back on the road. Since then I diagnosed the problem and found a ground plug under the battery box had become semi disconnected and locking the plug together solved the problem, and so now the car is running on the custom tune (93 race ) ,then I fine tune the configuration, and set the nutural idal at 710 and it still idals at 840


            Year: 2004 Submodel: GT

            Helpful (0)

          • 2/5

            June 21, 2019

            Not happy

            I have a near stock 02 gt with a BBK cold air intake and a stright pipe exhaust and applying the 93 octane tune to my car which was in fact running more than 94 octane saw little to no performance gains whatsoever besides horrible horrible I cannot stress enough how horrible the gas mileage was. So I switched it back to the 87 octane street tune even though I was running 92 pump with octane booster. Only improvement I got was better shift timing while driving. Really disappointing


            Year: 2002 Submodel: GT

            Helpful (1)

          • 5/5

            May 15, 2019


            Very easy to use and very usefull!! Glad i bought it and was delivered very fast. Cant wait to keep doing more updgrades


            Year: 2003 Submodel: GT

            Helpful (1)

          • 5/5

            April 29, 2019

            Bama tuner

            The Bama tuner is the best tuner to tune any car. I'm very happy with the tuner is easy to handle and easy to navigate.


            Year: 2014 Submodel: V6

            Helpful (0)

          • 5/5

            April 27, 2019

            Bama X4/SF4 Tuner

            First of all, for the tuner itself, it seems a little delicate In quality for the price. I just assumed it would be a little more substantial in the hand. Nonetheless, it’s very appealing to the eye, compact, it has a very nice easy to see and read screen. I like that you can adjust brightness and screen orientation. Very easy to use. I like that it has a code scanner built in for those times your wife says her CEL is on and you don’t feel like driving to the parts store for a scan. I also like the fact that you can fine tune the screen gauge layout to your taste of what you what to “keep an eye on”. Very intuitive piece of hardware. Very satisfied with the results.


            Year: 2003 Submodel: GT

            Helpful (2)

          • 2/5

            April 25, 2019

            X4 tuner

            Great tuner and handheld. However Bama tunes are garbage and it would be wise to go with the x4 tuner with SCT tunes or just save your money and get your car custom tuned off a dyno.


            Year: 2002 Submodel: GT

            Helpful (2)

          • 5/5

            April 15, 2019

            Great tuner for any 2v

            Great tuner for anyone that’s adding bolt ons on there mustang and doesn’t have a lot of money to get all of them at once as you can get a new tune each time you buy a new bolt on. This tuner does what it says and can really help you out in the long run especially if you play on boosting your mustang as you’ll need it to load a safe tune to take your boosted car to the dyno


            Year: 2002 Submodel: GT

            Helpful (1)

          • 1/5

            April 01, 2019

            Not what I expected.

            Well first off, I understood you needed a PC/windows to do any kind of downloads/tunning because I have a Mac, and I was ok with that . The problem is, my device is locked up, displaying “ DEVICE COM ERROR”. Unfortunately, now I have to find a computer or buy one in order for the SCT technicians to fix. They have to log on into my computer while device is connected. My advice , don’t buy this. Just take your car to performance shop and have them tune it.


            Year: 2001 Submodel: Bullitt

            Helpful (0)

          • 5/5

            March 14, 2019

            Best tuner I have ever used

            This is more than your run of the mill tuner. Yeah it will hold two custom tunes but there is so much more you can see and do with the tuner. For example you can adjust spark advance, gear ratio, tire size, shift points and the list goes on. very happy with my purchase.


            Year: 2000 Submodel: GT

            Helpful (3)

          • 5/5

            March 11, 2019

            Very good

            This will have your car running right after all those bolts ons


            Year: 1999 Submodel: GT

            Helpful (2)

          • 5/5

            March 04, 2019

            02 stang

            Great tuner for the price ,Super easy to download.


            Year: 2002 Submodel: GT

            Helpful (0)

          • 5/5

            January 09, 2019


            An absolute must for anyone looking to gain instant horsepower. I followed the tune installation instructions exactly as described, did not have any issues at all. This tuner does exactly what it claims to do, and more. I am absolutely thrilled with the results.


            Year: 2003 Submodel: GT

            Helpful (7)

          • 5/5

            December 27, 2018

            REV X4/SF4 TUNNER



            Year: 2001 Submodel: GT

            Helpful (5)

          • 5/5

            December 25, 2018

            Easy to update and install

            Requested two tunes and received it in a day.. download the tunes in computer and loaded it on the tuner very easy. First time downloading the tunes and I had to update the device for the drivers. After that is was easy and just follow the direction. I will request more tunes after I purchase more mods for the 99 Mustang GT. Thank you AM!


            Year: 1999 Submodel: GT

            Helpful (6)

          • 5/5

            December 10, 2018

            Sick wicked power!!!!!!!

            If you have 2000 to 2004 mustang Gt you have to get the tune to wake up your beast!!!!


            Year: 2000 Submodel: GT

            Helpful (7)

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