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SCT X4 Performance Tuner - 7.3 Powerstroke

-Up to 110hp & 200 torque
-Includes 4 base tunes
-2.6" x 5.5" LCD screen
NOTE: This product has the following shipping restriction(s):
  • This product is not available for shipping to California
Pricing: $419.00

NOTE: This product has the following shipping restriction(s):
  • This product is not available for shipping to California
Free Ground Shipping Within The Continental US


The SCT X4 is one of the best bang-for-your-buck tuners available for the Ford 7.3 PowerStroke. This handheld device offers a sizeable 2.6" x 5.5" full-color LCD screen that makes tuning, vehicle info, and datalogging very simple. The user interface is also fast & easy to navigate.

This programmer comes with 4 preloaded tunes and has room for up to 10 custom tunes. Tuning your 7.3 PowerStroke is as easy as 1-2-3. Simply plug the X4 into your OBDII port, select the tune, and within minutes your truck is ready to go. This simple plug-and-play tune is so simple to install that anyone can tune their 7.3 PowerStroke in a matter of minutes.

SCT X4 tuners offer tons of other benefits and capabilities outside of power gains. Read on to learn about the many benefits, features, and user adjustable options this programmer offers.

7.3 PowerStroke SCT X4 Benefits:

  • Gain up to 110hp and 200 lb-ft
  • Improved throttle response
  • Firmer shifts & customizable shift points
  • Includes 4 preloaded tunes (more details below)
  • Stores up to 10 custom tunes
  • 5.5" LCD screen
  • Wide variety of display gauges for datalogging and monitoring

This programmer has no shortage of amazing benefits and features for the 7.3 PowerStroke. With the performance tune the SCT X4 delivers power gains up to 110 horsepower and 200 lb-ft of torque. It also offers a street, towing, and transmission tune to meet the needs of 7.3L diesel owners. More details on the four preloaded tunes in the next section.

The X4 also improves throttle response, delivers firmer shifts, and allows for customizable WOT shift points. With a 5.5" LCD full color screen it makes tuning, monitoring, and datalogging a breeze. 

SCT X4 Preloaded Tunes

The SCT X4 programmer for the Ford 7.3 PowerStroke includes four tunes:

Performance Tune

The performance tune is the most aggressive preloaded 7.3 PowerStroke tune. It offers the biggest power and torque gains with less focus on fuel economy. Towing is not recommended with the SCT X4 performance tune.

Street Tune

Street tunes deliver a great overall balance of fuel economy, performance, and towing. Power and torque gains are lower than the performance tune, but this tune is safe for light towing up to ~5,000 lbs. 

Towing Tune

The SCT X4 towing tune has less emphasis on performance, but it's a great preloaded tune for any form of towing. Shift points are specifically optimized for towing with the 7.3L diesel.

Trans Only Tune

A transmission only tune is primarily for towing heavy loads. The engine and boost are left stock, so only the transmission shift points are tuned. It's a good alternative to the towing tune if you don't want to run more boost or power while towing.

7.3L PowerStroke SCT X4 Adjustable Options:

  • Transmission Tuning
  • Speed Limiter
  • Rev Limiter
  • WOT Shift Points by Gear
  • Shift Firmness Control

These are the features that are available and work on the 7.3 PowerStroke specifically. The SCT X4 also offers other features like traction control, lock in the torque converter in 1st, 2nd, and 3rd gear, and more. However, certain features like those are not compatible on the older 7.3L diesel.

Is the SCT X4 the Best Diesel Programmer?

We believe the SCT X4 is one of the best all around tuners for the Ford 7.3 diesel. However, the best tune can depend on your personal preferences, goals, and budget. If you have a larger budget and want a higher-end programmer then X tune is a great option. This device offers X, Y, and Z. Otherwise, if you're looking for a budget-friendly tuner that still offers a great selection of preloaded tunes and excellent features then look no further than the X4.

Have more questions? Check out our FAQ tab for additional answers and details on the 7.3 PowerStroke SCT X4 or hit the chat button to connect with us directly.


Does the SCT X4 support custom tuning?
Yes, the SCT X4 supports custom tuning and can store up to 10 custom tune files. The device does not include custom tuning, so this will need to be purchased and done separately from the purchase of the X4.

Are emissions deletes supported?
No, the X4 does not support any form of emissions delete.

Why doesn't this product ship to California?
The 7.3 Powerstroke SCT X4 is not CARB certified, so it cannot be shipped to California.

Can I use the X4 programmer on multiple trucks?
While the SCT X4 is compatible with other diesel trucks the device is VIN-locked, so it cannot be used on more than 1 vehicle at a time. However, the VIN lock can be removed if you wish to flash back to stock and sell or trade the programmer.



Shipping Information

  • Item Requires Shipping
  • 1.1 lbs.
  • W6.0000” x H4.0000” x L6.0000”
  • Free Ground Shipping Within The Continental US

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