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

Market Price $429.99 You Save 7% ($30.00)
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  • Item 101200G99
  • MPN# 101200G99

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Ship to: ASHBURN - 20146
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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
    • Free Personalized ID Plaque (Pictured)
    • PC/Windows Compatible Only
    • 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?
    • Bullitt - 01
    • GT - 99, 00, 01, 02, 03, 04

    Not compatible with Mac software

    People Who Bought This Item Also Bought

    Most Helpful Reviews

    Buy It Now!! Dont waste anymore time!!

    Just got it today and i have so much to say but ill make it simple. BUY IT NOW! I got 87 street, 87 perf, 93 race tunes. (its a DD) I havent even tried the 93 race but the 87 perf is worth the $400 bucks ...

    Read More
    Helpful (10)

    Get More Outta Your Upgrades with this Tuner!

    I recently had purchased an Upper Intake Plenum and 75MM Throttle Body. I expected for the throttle response to get better and a slight gain in HP. Then I added this tuner with it and got a lot more outta ...

    Read More
    Helpful (8)

    Overall Rating 4.6 out of 5 stars
    Read All 100+ Reviews

    Customer Photos (16) Submit Your Photo

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    You Might Also Like

    64 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)

    I am putting a 2003 2v 4.6 w/ auto in a 92 f150, full computer and all. Doing full bolt on and cams. Does your tuner work without a vin number from the previous vehicle.


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    Customer Reviews (100+) Write a Review

    Overall Rating 4.6

    out of 5 stars

    • Performance Gain 4.349557 4.3
    • Seat Of Your Pants Feel 4.336283 4.3
    • Ease Of Use 4.748899 4.7
    • Bang For Your Buck 4.411504 4.4
    • Preferred Tune: Performance

    • 5/5

      April 23, 2014

      Buy It Now!! Dont waste anymore time!!

      Just got it today and i have so much to say but ill make it simple. BUY IT NOW! I got 87 street, 87 perf, 93 race tunes. (its a DD) I havent even tried the 93 race but the 87 perf is worth the $400 bucks easy! Tire chirp in 2nd gear in an auto. I cant wait to run out of 87 so i can try 93 race. Stop wasting time like i did. I read every review, every forum for weeks. JUST DO IT NOW!! I drive a 04 gt vert auto, Pypes catted X, violator cat back, accufab 75mm tb


      Year: 2004 Submodel: GT Robstown Texas

      Helpful (10)

    • 5/5

      April 23, 2014

      Get More Outta Your Upgrades with this Tuner!

      I recently had purchased an Upper Intake Plenum and 75MM Throttle Body. I expected for the throttle response to get better and a slight gain in HP. Then I added this tuner with it and got a lot more outta my car. The device is easy to use and the tunes are easy to install. It was well worth the money and the name plate that comes with it was of high quality as well. All the tunes are different but are precise to how Bama Performance wants them to be. The color display really sets this unit off and allows you to change colors of the display as well. It doesn't take a genius to follow the on screen instructions either. Another great product and customer service from AM and Bama Performance.


      Year: 2004 Submodel: GT Danville, IL, USA

      Helpful (8)

    • 5/5

      March 18, 2015

      Make your Mustang a CRAZY Horse with this programmer from BAMA!

      All I can say is wow. This tuner is the greatest single item I have ever purchased for a car. The throttle response is amazing, the seat of the pants feel is unbelievable and the sound of the car now is straight up ridiculous! This programmer honestly made me feel like I hopped of of my mildly modded 04 Mustang GT and into a Cobra or GT500!!!! IT IS THAT GREAT!!! The programmer is very user friendly, it has many custom options that you can program in and it even has WIFI!!!! This tuner has it all and when other people on here say they can "feel" it THEY ARENT KIDDING!!!! This programmer got the most out of my mods and heck! after downshifting from any gear my mustang has a nice growl and pops like a Trans-Am race car!!! The only thing I don't like about this tuner is that it's SOOOOO good im kicking myself for not getting it sooner!!! So ALL Mustang owners..... This is my plea to you..... GET THIS PROGRAMMER!!!!! Amen


      Year: 2004 Submodel: GT Ashburn, VA

      Helpful (6)

    • 5/5

      October 11, 2016

      A must have!

      Great product! A must have! Price is a little high but well worth the gain. If you are thinking about it, Get It!


      Year: 2001 Submodel: Bullitt

      Helpful (5)

    • 5/5

      April 18, 2014

      awesome tuner!!!

      As soon as i got the tuner i loaded up the race tune... and boy did it make a difference to the power output of my 2000 gt. It deffinetly got me the max power out of all my proformance parts. Since loading up the race tune all my car wants to do is go sideways in 1st through 3rd gear : ) i recomend this tuner foranyone wanting more power and better mpg


      Year: 2000 Submodel: GT Bend, OR, USA

      Helpful (5)

    • 4/5

      May 04, 2014

      Good if you have mods!

      I bought this tuner for my bone stock mustang 01 gt auto. The only mod it has was a CAI. Installing it to the car was easy. The biggest difference, when the race tune is downloaded, is that the car shift at higher rpm than before. Also it shift very fast, making almost like a little power shift. On the negative side, I don't feel the 21hp promised. I would say that the only change was on the shifting. I guess when you have more mods this tuner with a custom bama tune will help you a lot, but if you are stock I think there are plenty of mods to do with 400$ buck. Thanks!


      Year: 2001 Submodel: GT Quebec, Canada

      Helpful (4)

    • 5/5

      March 16, 2017

      Wonderful tuner!

      I really wanted 2 step for my car so I could get some good launches. All I had to do to get 2 step with my custom tune was to email them and put tjat I wanted 2 step in the comment section of your mod list when you submit a tune. Great company!


      Year: 2001 Submodel: Bullitt

      Helpful (3)

    • 5/5

      March 14, 2017

      Bama tuner

      Should be your first upgrade if you have an automatic. Excellent product.


      Year: 2001 Submodel: GT

      Helpful (3)

    • 5/5

      March 07, 2017

      This tuner worked flawlessly!!

      Ordering could not be easier and without a doubt, a noticeable increase in throttle response, acceleration and shift firmness. I highly recommend this tuner to any with bolt-ons. No problems at all. Great product and service.


      Year: 2002 Submodel: GT

      Helpful (3)

    • 5/5

      January 14, 2017

      Immediately noticeable gains!

      While the updating process was a little difficult (notable driver issues with Windows 8.1), the tune itself only took about 5 minutes. It backs up your stock tune automatically when you choose which tune you want to run. Mine only came with an 87 octane performance tune but with the free tunes for life I can get the street or racing tunes. I was previously running a stock tune on my 2000 GT with a FRPP Intake Manifold, Airaid CAI, and SLP Loudmouth II catbacks. My car used to bog down/choke a little at idle even after replacing my IAC, new plugs, etc and after the tune, it runs as smooth as ever! It's like driving a newer GT model. If you have bolt-ons or plan on adding mods, this is a must buy for the best performance.


      Year: 2000 Submodel: GT

      Helpful (3)

    • 5/5

      November 08, 2016

      Get it now

      I was sceptical that a ECU flash could make any noticeable difference. I was wrong. My 03 GT has a cold air intake and Flowmaster exhaust, other that that stock as far as performance. The custom tunes provided by Bama really woke up the sleeping beast. I just wish I had a dyno to see what I really gained, but it is noticeable. This is probably one of the easiest upgrades you can do to pick up what Ford left on the table.


      Year: 2003 Submodel: GT

      Helpful (3)

    • 5/5

      April 22, 2014

      This is amazing tunner

      This tunner is so easy to use and I can just pull it out anytime time weather I'm going to race someone or just cruze fast down the highway you can really feel the extra horses your getting when you tune it I would recomond it to anybody with a mustang great deal and amazing results


      Year: 2001 Submodel: GT Stillwater, OK, USA

      Helpful (3)

    • 5/5

      August 14, 2017

      A Different Car

      The reason I bought this was to hopefully fix a lean issue and an O2 sensor issue in my 2002 Mustang GT which was when it rained and the humidity was high, my O2 sensors would go crazy (I'm catless and O2 spaced). Once I got tuner I uploaded the custom tune I ordered and I was completely blown away. Coming from a MK4 GTI, of course there was more power, but in reality there was definitely flat spots in the power band before. Now, it flies like a bald eagle soaring in the sky. In all seriousness, it literally pulls all the way through the powerband at least 2x better, and runs oh so much better in all aspects now. This should definitely be one of the first things anyone should buy if they have a Mustang. It's that much of a difference.


      Year: 2002 Submodel: GT

      Helpful (2)

    • 5/5

      May 09, 2017

      Huge difference!

      I could tell immediately the difference in throttle response, have no lag anymore. Also, it changed the sound of the exhaust and sounds even throatier. Only thing is it seems to downshift hard so planning on getting it re-tuned. It's great to be able to have custom times for life to accommodate for new mods and your preferences.


      Year: 1999 Submodel: GT

      Helpful (2)

    • 5/5

      May 03, 2017

      Love the diff in power and shifting .....

      I must say this made a big diff in my power level on my GT Mustang . The transmission shift improvement alone was worth buying the tuner . I just should have don't this a long time ago . Makes my car fun to drive for sure .


      Year: 2002 Submodel: GT

      Helpful (2)

    • 5/5

      March 17, 2017

      Bama tuner

      Love it!!! Really woke up my 2000 gt! Definitely gonna purchase another one for my 97 cobra!!


      Year: 1997 Submodel: Cobra

      Helpful (2)

    • 5/5

      March 14, 2017

      Great upgrade!

      Installed into my 01 GT 5-speed. I already had airaid intake, 70mm throttle body, CandL intake elbow, shorty headers, 03 cobra mid pipe, magnaflow exhaust, 3.73 gears. Woke the car up! Actually surprised at the difference it made. Another nice benefit, now my speedometer reads correctly due to the 3.73 gears. They also turned off traction control for me. All in all, and very nice upgrade!


      Year: 2001 Submodel: GT

      Helpful (2)

    • 5/5

      January 13, 2017

      Well worth the money

      Ive had my eye on this tuner for a little over a year now. I was skeptical about the price but i finally decided to bite the bullet and grab one. After seeing all the tuning options it made it clear it was well worth the money. You can actually set your own parameters and make your own tune while in the car with the tuner. I already did the J Mod shift kit in my automatic and now after the tune it shifts even harder! I love how aggressive it made my GT


      Year: 1999 Submodel: GT

      Helpful (2)

    • 4/5

      August 22, 2016




      Year: 2001 Submodel: GT

      Helpful (2)

    • 5/5

      August 18, 2016


      This tuner did exactly what it was supposed to do, tune my car. I bought a 2001 GT and the previous owner had started beefing it up a little (4:10 gears, TB,Intake,etc) but I wasn't sure what all had been done but I know it didn't run great. Ordered this tuner. the AmericanMuscle and Bama techs walked me through on how to give them the best info possible. I received the tuner with 2 custom tunes (87per-93rac) and I loaded the 87 octane performance tune on my car quickly and without any problems. It worked perfectly! Now I had to drive all over as to run out my gas so I could fill the tank with 93 octane and load my racing tune. Only problem at all is my speedo is still off about 7mph but all that requires is contacting Bama and they will email a new tune with the correct speedo settings. I highly recommend this tuner


      Year: 2001 Submodel: GT

      Helpful (2)

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