Home | SCT PROGRAMMERS AT BRENSPEED | 99-04 Mustang GT Brenspeed Custom Tuned SCT X4 Programmer

99-04 Mustang GT Brenspeed Custom Tuned SCT X4 Programmer

Product Reviews for 99-04 Mustang GT Brenspeed Custom Tuned SCT X4 Programmer

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Tuning Video

Please Choose from the Drop Down Menu above if:

You have installed Aftermarket Camshafts and/or Aftermarket Ported Heads, or Large Valve Heads.

We only offer calibrations for 1999-2004 Mustang GT's and V6's with STOCK injectors, and STOCK OEM MAF's. This calibration is for stock OEM engines and not conversions.

By far the #1 first modification for your Mustang is one of our aftermarket air intake and custom Brenspeed tuned X4. Our custom tunes will give you the fastest throttle response possible, increased HP, the maximum torque possible at lower RPM’s, and often improved MPG. Brenspeed’s custom tunes are a far cry from your basic aftermarket tune. We have years of experience and R&D invested into our tunes to give you more benefits than just a peak HP gain on the dyno. With multiple modifications performed to many parameters within the torque management, adaptive learning, spark, and fuel tables it is common to reduce quarter mile ET's and often improve MPG.

The Brenspeed Custom Tuned X4 includes one custom naturally aspirated tune (not nitrous/turbo/supercharger) developed for your Mustang. The SCT X4 will store the factory tune so you can return the vehicle to stock at any time.

What you are purchasing:

You are purchasing a calibration developed in house on one of our engineering vehicles. We have calibrations developed for almost every product we offer. Our calibrations must pass a rigorous list of specifications through racing, street driving, and dyno testing before they are released. We do not simply dyno one car and consider that enough information for a mail order calibration. This is the main reason that we do not calibrate for every aftermarket product on the market. However, we are constantly working on releasing new calibrations. A Brenspeed Calibration is not a standard calibration created by a software manufacturer that is providing one size fits all "tunes" to everybody that purchases their tuning software.

What you are not purchasing:

You are not purchasing what is known as a "remote tune" or "remote calibration". Remote tuning a car is having the customer data log vehicle information and sending that info to the calibrator, then changes are e-mailed back to the customer, and so on. Remote tuning is the fine tuning of a calibration to a specific customer need beyond the developed mail order calibration. This is also known as dyno tuning, but with the tuner being remote to the dyno or test area. Remote tuning and dyno tuning take about the same amount of time and effort. We currently do not offer remote tuning but we do have facilities located in Indiana that do offer in house services starting at $400. Prices vary per application, and not all applications are supported so please contact us for more information.

After you order our sales department will e-mail you to find out about your current modifications if any, your Mustang in general, and other information so we can develop your custom tunes. The custom tunes will then be loaded on your SCT X4 so all you will have to do when it arrives is plug it in and allow the custom tunes to load on your Mustangs PCM. It is that easy!

SCT X4 FEATURES:

Full User adjustability so if you so choose you can adjust idle, axle gear ratio, tire revolutions per mile, rev limiter, automatic trans shift points, spark, and air fuel. Your custom tune will not require any of these changes. We install the features on the programmer as some customers like access to them.

Read DTC Trouble Codes & Clear Trouble Codes

On Screen Data Logging

Ability to Receive Custom Tunes via E-Mail from Brenspeed