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Ford Performance 3.73 Gears and BAMA X4 Tuner (99-04 V8)

Market Price $699.99 You Save 11% ($80.00)
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  • Item 101657

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    Features & Details

    • Money Saving Combo Kit
    • Bama SF4/X4 Tuner with 3 Custom Tunes
    • Free Tunes for Life
    • Ford Racing 3.73 Gears - 8.8"
    • Motive Gears 8.8" Rear End Installation and Bearing Kit
    • 2 Quarts Royal Purple Max Gear 75w90 Gear Oil
    • 1 Quart of Ford Racing Friction Modifier
    • Includes datalog reviews to ensure your vehicle is fully optimized
    • Fits 1999-2004 V8 Mustangs
    Bama Performance

    The Gears
    The Gears

    Improve ET's and Low End Torque. Installing a set of steeper rear gears is a great way to get more low end grunt off the line and lower your ET's at the same time. Ford Racing Mustang ring and pinion gears feature a super strong forged construction, CNC cut & lapped gear teeth, and a black oxide finish to resist corrosion making them perfect for street, road, or race use. More info about these gears - Here

    The Tuner
    The Tuner

    Power. Performance. Personalized. The SCT Power Flash Tuner features Bama Performance custom tunes that are written specifically for your Mustang. Our tunes are based on a 19 point questionnaire to deliver the most power and performance possible for your Mustang’s modifications. All Bama Performance tunes are tested and proven on our very own in-house Dynojet 224xLC Chassis Dyno. More info about this tuner - Here

    The Combo
    The Combo
    • More horsepower and torque
    • Better throttle response
    • Enhances existing modifications
    • Custom Dyno proven tunes
    • Free Tunes for Life


    Technical Note. Installation costs will vary, but a good rule of thumb is between $250 and $300. Be sure to work with a reliable shop that you trust for installations. You can also save money on your installation labor by having your Trac-Lok rebuilt at the same time as your gears are installed, see drop down option above.

    **NOTE: 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. Membership in the Tunes for Life program is 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
    • Ford Racing 3.73 Gears
    • Motive Gears 8.8" Rear End Installation and Bearing Kit
    • (2) quarts Royal Purple Max Gear 75w90 Gear Oil
    • 1 quart of Ford Racing Friction Modifier
    • Free Tunes For Life
    Installation Info
    Tech Specs
    Bama Custom Tuning at AmericanMuscle. Power. Performance. Personalized. Proven
    Ordering a Custom Tune?Whether it's a new mod or just an octane change on your existing tunes, our Bama Performance calibrators have got you covered in a few easy steps:
    1. Buy this Tuner & Submit your Mustang's Info
    2. A Bama Performance Calibrator writes custom tunes just for your Mustang & Mods
    3. Load 'em on your Mustang and GO!
    4. As you add new mods, Bama will update your tune files for FREE!
    That's right, Free Tunes for Life!

    More Power. Do you want the ultimate power package for your Mustang? Well look no further, because it has arrived. AmericanMuscle introduces the kit that will launch you into quarter mile times that you have never dreamed of possible; designed to give the best possible performance upgrade for your car, without having to empty your wallet.

    Kit includes: (click on each item for full product description)

    Increased HP and torque. From the factory, the manufacturer programs their vehicles to cater to the needs of the daily driver, not the performance enthusiast. After loading the custom Bama Tune on a vehicle, even a bone stock, unmodified Mustang will realize noticeable gains in HP, Torque, and Fuel Economy.

    Increase your mod's potential. Factory computer settings are calibrated for the original factory components. When making performance modifications, you need to recalibrate the vehicle's computer to realize the full potential that these modifications can achieve.

    Free tunes for life! Every customer that purchases a 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.

    Custom Bama Tunes specific to your vehicle. When you order a tuner, you aren't just getting a tuner - you are getting the tuner and 3 dyno-tested custom Bama tunes:

    • Street (87-93 octane) - the street tune is designed as a daily driver program that focuses in on increasing mid-range power. It does give up a few HP at higher RPMs, but that's why there is a Performance file. Automatic vehicles are further enhanced by making adjustments to the transmission's shift points and firmness.
    • Performance (87-93 octane) - The Performance program is designed to add power at 3000 RPMs and higher, focusing more on the top end horsepower and all out performance driving. Timing, fuel and throttle response settings are slightly more aggressive than the street tune. This is a great track tune but also works well for daily drivers that are looking for a little more "get up and go" than the street tune. The automatic transmission settings are the same as in the street tune.
    • Race (91 - 93 octane) - The race tune will ensure the largest increase in vehicle performance. Using the highest grade of fuel available in your area is mandatory. This file is designed for "Race only Use" as the timing, fuel, and throttle response settings are very aggressive. in fact, the adjustments are so aggressive, that we do not recommend it for daily driving as it may cause your vehicle to try to jump out from a stop and easily spin the tires. Finally, with the automatics, we implement entirely new shift points and firmness settings to further enhance the all-out performance of the vehicle.

    Nitrous (91-unleaded race gas) - Our nitrous option can be added to any of our previously mentioned tune options, but only for 91-octane unleaded fuel.

    Easy to load; easy to restore. Not only are the custom tunes easy to load on your vehicle, it is just as easy to restore your factory settings. 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.

    SCT SF4/X4 Power Flash Tuner Features:

    • The SF4/X4 by SCT is the newest replacement for the popular SF3/X3
    • Reads / Clears DTC Trouble Codes
    • On screen data logging and monitoring
    • Full color LCD display with auto dim feature
    • Built-in WiFi for easy updates
    • PC/Windows compatible
    • Custom tuning applications for 1999-2004 GT, Bullitt, Mach 1 and SVT Cobra Mustangs
    • Click for Instructions on Loading Custom Tunes to your Mustang.

    Approximate RPM for 1999-2004 GT


    Manual
    Gear @25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
    1 3888 5443 6998      
    2 2301 3221 4141 5061 5981 6902
    3 1518 2126 2733 3340 3948 4555
    4 1150 1610 2070 2531 2991 3451
    5 782 1095 1480 1721 2034 2347


    Automatic
    Gear @25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
    1 3267 4573 5880      
    2 1783 2496 3209 3922 4636 5349
    3 1150 1610 2070 2531 2991 3451
    4 805 1127 1449 1771 2093 2416
    Will it fit my Mustang?

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    95 Questions / 6 Answers

    Ask a Question

    I have read the contents of this kit, I have watched the video, but I STILL DON'T KNOW if this kit includes the rear gear pinion bearing kit necessary for 2010 Mustang gear swaps? And this is from a person who reads, writes and interprets complex written language for a living... Also, can not find this "drop-down" menu you are talking about in the video. You warn about it being necessary all the time, yet do not state clearly if this bearing kit contains it or not. Please indicate this CLEARLY for everyone to see, it is really confusing. Apart from that (assuming the kit DOES NOT include the rear, which I seem to deduct from one of the answers for previous questions), why make a bearing kit without the most important and needed bearing? Does ANY kit you sell include this 2010 rear gear pinion bearing (maybe those big kits with bottles for 279$ or any other kits by Ford?) or the only way is to buy the bearing separately?

    MattK

    • We do apologize that the listing is not clear enough. The Motive Rear End Installation and Bearing Kit does not include the Rear Gear Pinion Bearing for 2010-2014 Mustangs. The bearing is not included in the kit because the kit is designed for 1986-2014 Mustangs, and it is not necessary for the majority of the years this kit works on. It is included in the Gear Combo Kits for the 2010-2014 GT and 2011-2014 V6 Mustangs found here: https://www.americanmuscle.com/2010-mustang-gears.html#shop-by7

      VincentV

    Helpful (4)

    Will this correct speedo for a rear gear change

    Keith

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

      AMDell

    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?

    JamesB

    • 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!

      Ricky36

    Helpful (1)

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

    Nate

    • Unfortunately, Bama does not tune for aftermarket superchargers.

      VincentV

    Helpful (1)

    Do you know if these kits will fit a 99 f150 4x4 with an 8.8 rear gear?

    ScottG

    • The Motive Rear End Installation and Bearing Kit will work with pre 2015 8.8 rear axles.

      Rob D

    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

    kkeymanz

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

      MatthewA

    Helpful (1)

    People Who Bought This Item Also Bought

    Customer Reviews (100+) Write a Review

    Overall Rating 4.8

    out of 5 stars

    Installation Time:Full Day

    Installation Cost:$250-$500

    • Performance Gain 4.5807 4.6
    • Fit 4.911613 4.9
    • 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



    • 2/5

      May 17, 2018

      I bottle of gear oil

      So far before this install even begins there was only one bottle of royle purple gear oil sent so be prepared to spend an extra 40 plus on that . More to come I’m sure .

      Brad1991331

      Year: 2001 Submodel: GT

      Helpful (0)

    • 5/5

      May 17, 2018

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

      LET OUT THE BEAST

      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

      TFL

      Year: 2000 Submodel: GT

      Helpful (1)

    • 5/5

      May 14, 2018

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

      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.

      Jack

      Year: 2012 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      May 01, 2018

      Review from Ford Performance Ring Gear and Pinion Kit - 3.73 Gears (11-14 V6; 86-14 V8, Excluding 13-14 GT500)

      Worth the money

      A lot more fun to drive with these. Worth every penny

      Larry

      Year: 2006 Submodel: GT

      Helpful (1)

    • 5/5

      April 27, 2018

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

      30 torque to the wheel

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

      theUnknown

      Year: 2002 Submodel: GT

      Helpful (1)

    • 5/5

      April 24, 2018

      Review from Motive Rear End Installation and Bearing Kit - 8.8 in. (11-14 V6; 86-14 V8, Excluding 13-14 GT500)

      Great installation kit

      Bought this because I was installing 4.10s. Came with everything I needed. Great kit.

      Blake06

      Year: 2006 Submodel: GT

      Helpful (1)

    • 5/5

      April 13, 2018

      Review from Motive Rear End Installation and Bearing Kit - 8.8 in. (11-14 V6; 86-14 V8, Excluding 13-14 GT500)

      Bearings

      Everything fit perfect very good kit, no leaks and everything seems to be working fine

      RedfireRed

      Year: 2003 Submodel: GT

      Helpful (1)

    • 5/5

      April 08, 2018

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

      Tuner

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

      CharlesW

      Year: 1999 Submodel: GT

      Helpful (1)

    • 4/5

      April 05, 2018

      Review from Motive Rear End Installation and Bearing Kit - 8.8 in. (11-14 V6; 86-14 V8, Excluding 13-14 GT500)

      8.8

      I used this kit to install 4.56 gears into a 8.8 that I am swapping into my Jeep. Everything worked out very well but I just wish it came with more crush sleeves. I am new to building differentials so it took many trials to get it right.

      JeffreyN

      Year: 2001 Submodel: GT

      Helpful (1)

    • 5/5

      April 03, 2018

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

      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.

      CedricGTStang

      Year: 2001 Submodel: GT

      Helpful (1)

    • 5/5

      April 02, 2018

      Review from Motive Rear End Installation and Bearing Kit - 8.8 in. (11-14 V6; 86-14 V8, Excluding 13-14 GT500)

      Awesome

      Best deal and fast shipping thanks american muscle

      Punisher98

      Year: 1998 Submodel: GT

      Helpful (1)

    • 4/5

      March 30, 2018

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

      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!

      RichM

      Year: 2001 Submodel: Bullitt

      Helpful (2)

    • 5/5

      March 25, 2018

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

      X4

      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

      OlindoH

      Year: 2001 Submodel: GT

      Helpful (3)

    • 5/5

      March 18, 2018

      Review from Motive Rear End Installation and Bearing Kit - 8.8 in. (11-14 V6; 86-14 V8, Excluding 13-14 GT500)

      Great product

      Every item fit perfectly, would buy again if needed.

      JariusG

      Year: 1986 Submodel: Other

      Helpful (2)

    • 4/5

      March 17, 2018

      Review from Motive Rear End Installation and Bearing Kit - 8.8 in. (11-14 V6; 86-14 V8, Excluding 13-14 GT500)

      Great install kit

      I haven't actuall used this install kit yet but have been told by friends that it's very good and a good value too. This install kit will be used on some 4.10 Ford Racing gears. Excited about the transformation.

      Andy

      Year: 2001 Submodel: GT

      Helpful (1)

    • 5/5

      March 15, 2018

      Review from Motive Rear End Installation and Bearing Kit - 8.8 in. (11-14 V6; 86-14 V8, Excluding 13-14 GT500)

      Nice

      Exactly what I need to install the ford racing gears.

      ChrisB

      Year: 2004 Submodel: GT

      Helpful (3)

    • 5/5

      March 09, 2018

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

      Great power difference

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

      Hkidd

      Year: 2002 Submodel: GT

      Helpful (3)

    • 5/5

      March 08, 2018

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

      SO FAR SO GOOD

      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.

      TylerG

      Year: 2004 Submodel: GT

      Helpful (4)

    • 5/5

      March 08, 2018

      Review from Motive Rear End Installation and Bearing Kit - 8.8 in. (11-14 V6; 86-14 V8, Excluding 13-14 GT500)

      Quality kit.

      Great kit, comes with all necessary hardware for a gear install. High quality bearings, races and shims at a reasonable price as you would expect from Motive Gear. Will definitely purchase again!

      James

      Year: 2006 Submodel: GT

      Helpful (4)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: $250-$500

      March 08, 2018

      Review from Ford Performance Ring Gear and Pinion Kit - 3.73 Gears (11-14 V6; 86-14 V8, Excluding 13-14 GT500)

      Love this product

      This product is the best gears out there best bang for your buck

      DeanS

      Year: 1996 Submodel: Cobra

      Helpful (2)

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