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

Item 101657
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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation

      Features

      • 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

      Description

      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.

      Bama Performance

      Fitment: 1999 2000 2001 2002 2003 2004 Details

      MPN# 101657

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      4.7

      Customer Reviews (100+)

      Write a Review

      Ratings Summary

      4.7 out of 5 overall rating from 100+ customers

      Installation Time: Weekend

      Installation Cost: $250-$500





      • February 07, 2020

        5 2001 Bullitt - Joseph31

        Great place for mustang parts

        Great gear no no issues with the gear got it fast you can feel the power

        Helpful (0)
      • February 03, 2020

        5 1993 GT - DirtyD Installation Time: Afternoon

        Not too shabby

        I actually installed these in my 05 Grand Marquis with a Ford Racing Trac-Lok differential. Not exactly night and day but a very nice improvement to say the least. Still managing 22mpg average hwy travel with minor bolt on's and a tuner on 93. This was the coolest and safest 4 door sedan I could think to put my kids in. Why not make it even cooler.

        Helpful (0)
      • January 30, 2020

        5 2001 GT - Chrisand01gt

        Rebuild Kit 8.8 rear end

        Got the kit and it’s nicely put together! Did not take long at all to get to my house and I cant wait to install it!

        Helpful (1)
      • January 21, 2020

        1 2001 GT - ThisGuy1

        Bama tuning destroyed my car!!

        Im not gona go in depth on here but basically bama "performance" destroyed my car after less than 2 months of using their tunes. Their generic poor excuse of a tune destroyed almost every sensor, and computer/module on my 2001 mustang gt with 100k miles. I had the engine completely broken down and refurbished, all the fuel delivery and ignition systems replaced, new ECU, to many senors and electronics to list. And now after several months and almost 2000$ later my car is finally running again! Bama also has terrible customer service. So i strongly recommend investing a little more money in a QUALITY tuning company instead of this poor excuse of a company called Bama Performance!!

        Helpful (9)
      • January 20, 2020

        2 1999 GT - RandallB

        Terrible warranty

        Worked good for a while then one week after the so called one year warranty unit quit working and they want $100 and shipping costs to fix it. Nice racket you have going and making so much money that your honor is out the door,, thanks anyway!

        Helpful (3)
      • January 18, 2020

        5 2008 GT - NVPerformance

        Perfect bang for your buck

        Only wanted 4.10s to test on street and my god let me tell you this will wake up your 3v like no tomorrow. Kiss bogging on the line goodbye. If it’s your daily these are still perfect. I cruise around 75mph at around 3k rpms. Not a noticeable drop. Literally perfect bang for your buck. I had a shop do it and only took them an two hours.

        Helpful (0)
      • January 10, 2020

        5 2002 GT - Maxey93

        Very allsome product.

        Would recommend the x4 tuner to anyone really make a difference killer power gain.

        Helpful (0)
      • January 07, 2020

        5 2001 GT - Zmeyer24

        Bama X4 Tuner

        Very fast shipping, my tunes were done before arrival, and it defiantly made a noticeable difference in power. Great for unlocking the potential of your pony.

        Helpful (0)
      • January 05, 2020

        4 2007 GT - Jay Installation Time: Weekend

        Best Performance Gain for the $$

        Good Quality, Complete Kit, Awesome performance gain!!! 4 stars because even with correct backlash (0.010 - 0.011") and a great contact pattern, I still have gear whine noise at highway speeds.....still would recommend as the performance gain outweighs the slight increase in noise. This is what Ford should have put in their manual ponies from the factory...I assume they didn't for fuel economy reasons, but I am still getting over 20 mpg!! (when driven easily)

        Helpful (0)
      • December 29, 2019

        5 2003 GT - Bitty

        Great

        Quality parts at affordable prices. Kit came complete with more than enough parts for a quality install

        Helpful (0)

      Questions & Answers (148 answers)

      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 (7)

      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?

      • 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

      Helpful (5)

      What type of bearing come in this kit? Koyo or Timken?

      • This Motive Rear End Installation and Bearing Kit - 8.8 in. (86-14 V8; 11-14 V6) kit is going to have Timken pinion bearings and Koyo carriers.

      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
      10 More Questions
      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? 1 answer
      Whats the difference? What is the difference between this kit and the kit for 35 dollars? 3 answers
      Can this product correct the speedometer on a 2000 Mustang GT when it reads high due to running a smaller tire size? 1 answer
      I plan on adding the 2012 Boss 302 Torsen differential to my 2011 Mustang GT. Is this the proper kit I will need to freshen up rear end when I have the Torsen installed? The stock rear end has about 41k on it and 3.73 gears. And will the kit's cover plate seal work with the aluminum differential cover plate? 1 answer
      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
      Is it okay to use this as a tuner after installing a smaller supercharger pulley? Will my car be safe? 1 answer
      Will Bama be able to tune for an Eaton TVS 1900 Supercharger on my 2002 Mustang GT? 1 answer
      Do you know if these kits will fit a 99 f150 4x4 with an 8.8 rear gear? 1 answer
      I am replacing the entire axle housing on my 14' GT. It appears this kit has everything I need for the housing swap. The original housing has damage. I need to confirm if this kit does actually have all the parts needed for the swap. (Besides gear oil) Thank you I already purchased new axles from you guys. 1 answer
      Can i data log AFR and Boost on my X4? 1 answer

      Installation & What's in the Box

      Installation Info

      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

      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
      1388854436998   
      2230132214141506159816902
      3151821262733334039484555
      4115016102070253129913451
      578210951480172120342347


      Automatic
      Gear@25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
      1326745735880   
      2178324963209392246365349
      3115016102070253129913451
      480511271449177120932416

      Will It Fit My Mustang

      • Bullitt - 01
      • Cobra - 99, 01, 03, 04
      • GT - 99, 00, 01, 02, 03, 04
      • Mach 1 - 03, 04

      Fits Mustangs equipped with a 8.8" rear end only

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