The best tuners can increase horsepower and torque while improving your MPGs, all without turning a wrench. It is one of the most popular upgrades truck owners use and is commonly paired with cold air intake and exhaust upgrades. However, with many tuners to choose from, all claiming to give your truck the biggest power gains, it’s tough to pick the right one. For this reason, we’ve compiled this list of the best tuner for 6.7 Powerstroke.

4 Best Tuners for 6.7 Powerstroke:

#1SCT Performance 7015 X4 Performance Tuner - best tuner for 6.7 powerstrokeSCT Performance 7015 X4 Performance TunerPre-loaded & custom tunes
#2DiabloSport 7103 Predator P2 Performance Tuner for 6.7 PowerstrokeDiabloSport 7103 Predator P2 Performance TunerPre-loaded tunes
#3Bully Dog 40420 GT Platinum Diesel Diagnostic and Performance Tuner for 6.7 PowerstrokeBully Dog 40420 GT Platinum Diesel Diagnostic and Performance Tuner4 Pre-loaded tunes
#4Superchips 1845 Flashpaq F5 Programmer for 6.7 PowerstrokeSuperchips 1845 Flashpaq F5 ProgrammerPre-loaded tunes

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#1 – SCTX4 Performance Programmer – Winner: Best Tuner for 6.7 Powerstroke

SCT Performance - 7015 - X4 Performance Tuner - Best Tuner for 6.7 Powerstroke
SCT Performance – 7015 – X4 Performance Tuner – Best Tuner for 6.7 Powerstroke

The SCTX4 Performance Programmer is a cost-effective tuner that will help you improve your vehicle’s performance without being a burden on your wallet. Although it is lower in price than the other tuners available in the market, it still delivers a wide range of customization options and outstanding performance. Whether you want to decrease the fuel consumption of your 6.7 PowerStroke or boost its horsepower, then the SCTX4 Performance Programmer is one of the best options available due to its benefits and functionality.

Helps deliver an improved performance

The SCTX4 Performance Programmer allows you to make little alterations to your truck to help improve its performance. It increases your truck’s throttle, horsepower, and torque, thus making your vehicle faster and more powerful than before. If you want an adrenaline rush or want to enter your vehicle in competitions, then this product is perfect for you. Furthermore, this tuner can store up to 10 custom tunes, thus making it easier to choose one that is ideal for the situation at hand.


It can be a daunting task to find a tuner that works fluidly with your truck, but the great thing about the SCTX4 is that it is compatible with many models of Ford vehicles manufactured from 1996 to 2014. It works with both diesel and gas automobiles.


The SCTX4 Performance Programmer also works as a troubleshooting aid. This device helps to determine what is wrong with your vehicle in a matter of seconds. It offers fast data monitoring and logging and can identify and clear DTC trouble codes. Hence, this device makes troubleshooting far quicker, easier, and more accurate.

Easy to read vehicle data

The big Backlit display of the SCTX4 Performance Programmer makes it easier to read Real-Time Vehicle Data and check popular sensor data such as Air/Fuel Ratio, EGT, or any other 0-5 Volt source.

Pre-loaded tune files

The SCTX4 comes pre-loaded with proven Dyno tune files that increase torque and horsepower.

Some of the adjustable variables of this product are as follows. These options vary from vehicle to vehicle and may not be available on all trucks:

Speed Limiter

This feature helps to change the top speed that the truck can reach before automatically limiting the power required to go faster.

Axle Ratio

Update fuel efficiency calculations and change the vehicle speedometer if you have made changes to the gear ratio of your truck. If you have not made any gear ration modifications, then choose stock settings when the SCTX4 asks you to choose a gear ratio. This ensures that no changes are made to the stock program.

Idle Adjust

This feature helps to enable and select a certain value for Engine Idle position. This ensures that the voltage in your truck is up while the auxiliary electronics are running off the truck’s power system.

Tire Size

Change the speedometer if you have switched your tire size from stock.

Intake Airbox

You can run an aftermarket intake without a Check Engine Light

CMCV Delete

You can disable the CMCV (Charge Motion Control Valve) when removing the CMCV plates to prevent Check Engine Light.

Locked at CT

Controls the torque converter during deceleration which helps in engine braking.

Multiple Displacement System

This feature helps to disable additional engine cylinders and initiate a fuel-saving 4-cylinder engine mode.


Disable or change the Tire Pressure Monitoring System.


  • Compatible with both diesel and gas vehicles
  • You can easily store ten custom tunes
  • It can accommodate many different models of trucks
  • It helps increase torque and horsepower
  • Easy restoration back to stock settings
  • Acts as a troubleshooting aid
  • Built-in WiFi makes it easy to download device updates
  • Monitor air-fuel ratio, EGT temps, and other conventional sensor data
  • Helps to monitor engine parameters
  • Easy installation through the OBDII port
  • LCD full-color display for clear viewing, night or day
  • Includes Livelink Datalogging software and USB Interface Cable
  • Adjust various performance bolt-ons such as Exhaust Systems, Cold Air Kits, and Gears


  • Not fully functional. You have to pay extra for additional tuning functions.
  • It doesn’t have a touchscreen.

For these reasons, we’ve chosen the SCT Tuner as the best tuner for 6.7 Powerstroke.

#2 – DiabloSport 7103 Predator Performance Tuner

DiabloSport 7103 Predator P2 Performance Tuner for 6.7 Powerstroke
DiabloSport 7103 Predator P2 Performance Tuner for 6.7 Powerstroke

If you are looking for an ultimate performance upgrade for your Powerstroke, then the DiabloSport Predator Performance Tuner is the perfect tuner for you. You can add 25 ft/lbs of torque, 25 Horsepower, and up to 3 miles per gallon fuel efficiency with the help of a simple OBD-II flash.

The DiabloSport Predator has tunes that are specially designed to increase your truck’s driving power. It also allows you to adjust your truck’s speedometer for larger aftermarket rear axle ratios, aftermarket tires, and even disable the top speed limiter.

The DiabloSport Predator is pre-loaded with programs. The simple plug-and-play installation of this tuner makes it one of the best tuners available.


  • Easy-to-use
  • Full-color screen
  • Increased fuel economy
  • Lightning-fast internet update software
  • Improved user interface
  • Best power gains


  • Not compatible with export Ford models (models outside of the USA)

An excellent tuner that earned the number two spot as a second-best tuner for 6.7 Powerstroke.

#3 – Bully Dog GT Platinum Diesel Diagnostic and Performance Tuner

Bully Dog 40420 GT Platinum Diesel Diagnostic and Performance Tuner for 6.7 Powerstroke
Bully Dog 40420 GT Platinum Diesel Diagnostic and Performance Tuner for 6.7 Powerstroke

The Bully Dog Performance Tuner is a monitor, vehicle engine tuner, diagnostic device, and gauge all in one device. It enhances the utility of various vehicle applications by providing an increase in torque and horsepower and improves fuel efficiency through better tuning. It monitors and displays more than 15 vehicle parameters, including the new driving coach feature, which educates the drivers on how to maximize the fuel economy potential of their trucks. This tuner performs comprehensive diagnostics by reading and deleting diagnostic trouble codes.


  • Allows users to determine their vehicle’s horsepower with the help of PC analysis software
  • Compatible with various recent models of diesel pickups such as GM, Ford, and Dodge
  • Comes with a mount that is convenient for on dash monitoring
  • Stores up to 10 custom tunes
  • Delivers DYNO proven tunes which increase torque and horsepower
  • Dynamic LCD mounted on a window, dash, or pillar
  • Ensures proper engine operation by diagnosing and clearing trouble codes
  • Saves fuel on long-hauls and while driving around town


  • It might take some time to update the unit
  • Some models do not see much improvement in fuel

#4 – Superchips F5 Programmer

Superchips 1845 Flashpaq F5 Programmer for 6.7 Powerstroke
Superchips 1845 Flashpaq F5 Programmer for 6.7 Powerstroke

The Superchips F5 Programmer is a leading handheld tuner available. Its easy installation allows you to increase horsepower without using any tools. The user interface combines functionality and simplicity. Its many features include mileage gains, instant horsepower gains, eliminating unneeded downshifting, and improvements in drivability. The 2-year powertrain warranty helps the drivers achieve peace of mind with this purchase.


  • Increased fuel management
  • 8 inches HD screen
  • A faster processor enables improved tuning
  • Redesigned graphics interface for better user experience
  • Speedometer correction for changes in gear ratio and tire size


  • All tuning levels may not be available for some trucks
  • It might counter some programming error

Diesel Tuner/Programmer Buyers Guide

When you are looking for a diesel tuner for your truck it is important to keep the following considerations in mind:


You should pay special importance to features before deciding on a tuner. Several tuners nowadays have similar features, but some have features that help them stand out from the rest. Look for features such as improvement in fuel economy, torque, and horsepower as they enhance the performance of your engine.


Although it is important to keep your budget in mind, make sure that you buy a tuner that is long-lasting. Carefully review the features so that you can better evaluate which tuner provides greater value for money. When buying electronics, it is better to avoid cheaper models as this would mean poor quality.

Easy installation

Nowadays, many tuners come in the plug and play models that are easy to install. You need to plug the device into the electrical system so that it can start functioning. Make sure that the tuner that you choose comes with an instruction manual so that you can easily install it yourself.

Data monitoring capabilities

Some tuners available today allow you to record and track data in addition to enhancing engine performance. They feature cloud-based restoration capabilities, which can help you save a lot of time.

Easy to use

Make sure that the tuner that you choose has a display that is easy to read and understand. Also, it should be easy to operate.


Although there are tuners that are compatible with a variety of vehicles some will help to bring out the full power potential of your vehicle.

How Diesel Tuners Work

Diesel tuners are small electronic devices that help to optimize the engine performance of diesel trucks. They go beyond the vehicle’s firmware to regulate the engine’s tuned to the driver’s particular needs. Some models also offer a gauge that enables the driver to see how the device is helping.

A tuner is purchased as an aftermarket product. It is a single-purpose mini-computer that has a window-mounted or on-dash monitor and control panel with cables to connect it to the stock engine control module.

Tuners operate by monitoring engine RPMs, turbo boost pressure, airflow, fuel rail pressure, coolant temperature, and other operating considerations like trailer load. It then balances these parameters by altering the electronic tuning features of the engine management system to achieve optimized performance.

Benefits of Diesel Tuners

There are various benefits of diesel tuners. They are:

  • Improved fuel mileage
  • Boosts torque and horsepower
  • Increases engine performance up to 120HP and 240 lbs/ft
  • Drivers can modify their performance needs by choosing from the available tunes according to the desired operating conditions.
  • It is not expensive and can be moved from one car to another without any professional help.
  • It is an investment as it can be sold when it is no longer needed
  • A tuner is plug-and-go; therefore it can be easily installed and removed without rendering the warranty void
  • It is very practical as your car can return to original factory settings after the tuner is removed
  • No wire cutting is involved in the installation

What to look for when buying a Diesel Tuner

Although there are tuners that go well with many different vehicles make sure that the tuner you have chosen works well with your truck. Make sure that you choose a tuner from a well-reputed manufacturer, as this will ensure engine performance maximization without causing any damage to the engine. Also, keep your budget in mind so that you do not buy a tuner that puts a burden on your pocket. Tuners nowadays come with various features. Make sure that the tuner that you choose has all the latest features and comes with custom tunes.

Things to avoid when buying a Diesel Tuner

Avoid buying a low-quality tuner as it could adversely affect your engine performance. There are many different tuners available in the market. Make sure that you compare their features before buying so that you can get the best value for money. Also, avoid buying a tuner that is not compatible with your truck’s engine.

Diesel Tuner FAQs

[sc_fs_multi_faq headline-0=”h2″ question-0=”What is a diesel tuner?” answer-0=”Diesel tuners are electronic devices that are engineered to increase your truck’s engine power output with the easy plug-and-play installation. They enable your engine to run smoothly and efficiently by providing big boosts regarding horsepower and torque. They also help to save gas money.” image-0=”” headline-1=”h2″ question-1=”What does a diesel tuner do?” answer-1=”A diesel tuner upgrades your truck’s engine power by communicating with your vehicle’s computer. The primary function of a diesel tuner is to maximize your truck’s overall performance. Tuners also help to customize properties according to driver’s preferences which results in better handling, improved power production, and better fuel economy. Diesel Tuners directly download information onto PCM (Powertrain Control Module) thus making power output the main focus of the truck. Tuners can perform a lot of functions such as adjusting injection pressures, boost, pulse width, peak operating range, and increasing injection timing. Some can also increase the top speed limiter, adjust the speedometer to accommodate bigger tires, read diagnostic trouble codes, and firm up transmission shifts.” image-1=”” headline-2=”h2″ question-2=”Will a diesel tuner void my warranty?” answer-2=”Installing a diesel tuner will likely void your warranty.” image-2=”” headline-3=”h2″ question-3=”How to use a diesel programmer?” answer-3=”It is very easy to use a diesel programmer. Simply plug it in the OBDII port and completely reprogram the PCM. The uploaded tunes present the control module with features that favor fuel economy and performance.” image-3=”” count=”4″ html=”true” css_class=””]

Best tuner for 6.7 Powerstroke: Conclusion

Diesel tuners help to save money and fuel by effectively streamlining and adjusting the engine’s fuel parameters thus resulting in improvement of pressure, timing, and quantity of fuel added. It enables the trucks to carry out tasks more easily by working less hard to achieve high performance while using less fuel.

Before buying a diesel tuner make sure that you go through this article as it will help you find one that is best for your truck.