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SCT X4 Performance Tuner - 6.0 Powerstroke

-Gain up to 150hp & 250tq
-Comes with 4 preloaded tunes
-5.5" full color 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 device is one of the best tuners available for the Ford 6.0 PowerStroke diesel. This handheld programmer uses a 2.6" x 5.5" full color LCD screen which makes tuning, datalogging, and monitoring as easy as possible. It also offers a very fast & easy to navigate interface.

6.0 PowerStroke X4 programmers come with 4 preloaded tunes (performance, street, towing, transmission only) and can store up to 10 custom tunes. Tuning the Ford 6.0L diesel is as simple as 1-2-3 with the X4 tune. Plug the SCT X4 into your OBDII port, select the tune, and within minutes your truck is tuned and ready to go. The simple plug-and-play device allows anyone to install the tune on their truck at home in a matter of minutes.

SCT X4 tuners offer countless benefits and capabilities outside of the massive performance gains. Read on to learn about the many benefits, features, and user adjustable options available with this programmer.

6.0 PowerStroke SCT X4 Benefits:

  • Gain up to 150 horsepower & 250 lb-ft
  • Improved throttle response
  • Includes 4 preloaded tunes
  • Stores up to 10 custom tunes
  • Over 10 user adjustable features (more details on features below)
  • 2.6" x 5.5" full color LCD screen
  • Large variety of display gauges for monitoring and datalogging

As shown above, this programmer offers some great benefits and features - especially for its price. With the performance tune the SCT X4 can add up to 150 horsepower and 250 lb-ft of torque on the 6.0 PowerStroke. Other preloaded tunes are street, towing, and trans only. More details on all of these X4 preloaded tunes in the next section.

The SCT X4 also improves throttle response, offers firmer shifts, and allows for a lot of other customization via user adjustable features. A 5.5" LCD screen makes tuning, monitoring, and datalogging straight-forward.

X4 Preloaded Tunes

Four preloaded tunes are included with the 6.0 PowerStroke SCT tuner including:

Performance Tune

The performance tune is the most aggressive, performance-oriented tune on the X4. It offers the biggest power and torque gains and is good for everyday use, racing, or economy. However, any form of towing is not recommended when running the 6.0 PowerStroke performance tune.

SCT X4 Street Tune

The preloaded street tune gives a good balance of economy, performance, and towing. Gains are lower than the performance tune, but this tune is safe for towing up to 5,000 pounds.

Towing Tune

SCT X4 towing tunes are primarily focused on towing. This tune does increase boost and power, but is less focused on all-out performance. Shift points are specifically optimized for towing with the 6.0L diesel.

Transmission Only Tune

Trans only tunes are for towing heavy loads. The engine, boost, power, etc. are all left stock and only transmission shift points are tuned for towing heavier loads. It's a good alternative to the towing tune if you don't want or need the added power while towing.

6.0L PowerStroke SCT X4 Adjustable Options:

  • Trans tuning
  • Axle ratio
  • Tire size
  • Speed limiter
  • Rev limiter
  • Idle speed
  • Traction control
  • WOT shift points by gear
  • Shift firmness control
  • Exhaust brake
  • Locked in 1-2-3
  • Aggressive tow haul

All these options can be adjusted by the user for endless customization. Change idle speed, shift firmness, shift points by gear and more easily with the SCT X4 tuner. 

Is the SCT X4 the Best 6.0 Diesel Tuner?

We believe the X4 is the best all-around tune for the Ford 6.0 PowerStroke. It's hard to beat the features and benefits of the X4 for the price. As such, this is the only tune we offer for the 6.0L diesel engine. We also offer the Edge Insight CTS3 which offers a better screen for monitoring and logging. However, the Edge Insight does not support tuning.

Have more questions? Check out our FAQ section or hit the chat button to connect with us.


Does the 6.0 PowerStroke SCT X4 support custom tuning?
Yes, the X4 tuner supports custom tuning and is able to store up to 10 custom tuning files. The device does not include custom tuning (just the 4 preloaded tunes), so any custom tuning will need to be purchased and completed separately.

Can the X4 tuner really add up to 150 horsepower and 250 torque?
Yes, however not everyone should expect these results. Exact power gains can vary depending on conditions, engine health, other modifications, and many other factors.

Does the X4 support emissions delete?
No, this programmer does not support any form of emissions deletes.

Why won't you ship this tuner to California?
The SCT X4 for the 6.0 PowerStroke is not CARB certified, so we cannot ship these programmers to California.

Can I use the SCT X4 on multiple trucks?
It is compatible with other trucks, but the SCT X4 is VIN-locked. The device cannot be used on more than 1 vehicle at a time. However, upon flashing the 6.0 PowerStroke back to stock you can remove the VIN-lock to use the device on another truck, sell it, or whatever else you may choose.



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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