We researched and compared the top diesel tuners for the 6.7L Powerstroke engine, evaluating manufacturer specifications, published industry standards, and aggregated owner feedback. Our guide highlights the best options for power gains, reliability, and ease of use, helping you choose the right tuner for your truck.
| Photo | Product | Score | Buy |
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Edge Evolution CTS3 Best Overall Up to 100 HP gain, color touchscreen, data monitoring |
9.2 | 🛒 Check Price |
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SCT Performance BDX Best Value Up to 80 HP gain, pre-loaded tunes, data logging |
8.8 | 🛒 Check Price |
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Bully Dog BDX GT Platinum Best for Towing Up to 90 HP gain, towing tune, EGT monitoring |
8.5 | 🛒 Check Price |
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H&S Motorsports Mini Maxx Best for Power Up to 120 HP gain, race tune, delete-ready |
9.0 | 🛒 Check Price |
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DiabloSport i3 Platinum Easiest to Use Up to 70 HP gain, touchscreen, pre-loaded tunes |
8.4 | 🛒 Check Price |
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EcoDiesel Tuner by GDE (Green Diesel Engineering) Best for Economy Up to 50 HP gain, fuel economy focus, emissions-compliant |
7.8 | 🛒 Check Price |
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Pulse Performance Products Pulse Budget Pick Up to 60 HP gain, basic tuning, no display |
7.3 | 🛒 Check Price |
1. Edge Evolution CTS3: Best Overall
The Edge Evolution CTS3 is a comprehensive tuning and monitoring solution for the 6.7 Powerstroke. Based on owner feedback and the spec sheets, it offers up to 100 horsepower gains with pre-loaded tunes that optimize for fuel economy, towing, or maximum power. The full-color touchscreen provides real-time data on EGT, boost pressure, and transmission temperature, helping you keep an eye on engine health. In our evaluation, the CTS3 stands out for its ease of use and extensive monitoring capabilities, making it a top choice for owners who want both performance and diagnostics.
However, the CTS3 is not the most affordable option, and some users report that the screen can be difficult to read in direct sunlight. We recommend this tuner for Powerstroke owners who prioritize a easy to use interface and comprehensive data monitoring, but those on a tighter budget may want to consider a simpler, less expensive tuner.
- Large color touchscreen with customizable gauge displays
- Pre-loaded tuning for economy, towing, and performance
- Includes EGT, boost, and transmission temperature monitoring
Pros: Intuitive interface with real-time data logging; Multiple tune levels for different driving needs
Cons: Higher price point compared to basic tuners
2. SCT Performance BDX: Best Value
The SCT Performance BDX is a solid mid-range tuner that balances cost and capability. According to manufacturer specifications and owner feedback, it delivers up to 80 horsepower gains with pre-loaded tunes for street, towing, and economy. The BDX also includes data logging and diagnostic functions, allowing you to monitor key parameters. In our evaluation, the BDX offers excellent value for its price, making it a popular choice for budget-conscious owners who still want reliable performance improvements.
One limitation is its smaller display, which some users find less convenient for real-time monitoring. Also, the touchscreen interface is not as responsive as higher-end models. We recommend the BDX for owners who want a capable tuner without breaking the bank, but those who prioritize a large, high-resolution screen may want to look elsewhere.
- Pre-loaded with multiple performance and economy tunes
- Built-in data logging and diagnostic capabilities
- Supports custom tuning from SCT dealers
Pros: Affordable price for the features offered; Custom tuning support from a wide network of tuners
Cons: Smaller screen compared to competitors
3. Bully Dog BDX GT Platinum: Best for Towing
The Bully Dog BDX GT Platinum is designed with towing in mind, offering a dedicated towing tune that optimizes shift points and power delivery for heavy loads. Based on owner feedback and the spec sheets, it provides up to 90 horsepower gains while keeping exhaust gas temperatures in check. The tuner also includes essential monitoring for EGT, boost, and transmission temperature, which is crucial for towing safety. In our evaluation, the BDX GT Platinum is a reliable choice for owners who frequently tow and want a tuner that prioritizes durability and safety.
However, the BDX GT Platinum lacks the custom tuning flexibility of some competitors, and its interface is less polished than the Edge CTS3. We recommend this tuner for those who primarily use their truck for towing and want a straightforward, reliable solution. If you need extensive customization or a larger screen, consider other options.
- Dedicated towing tune with transmission optimization
- Includes EGT, boost, and transmission temp gauges
- Gray market compatible (Canada/Mexico)
Pros: Excellent towing performance with safe EGT limits; Works with Canadian and Mexican market trucks
Cons: Limited custom tuning options
4. H&S Motorsports Mini Maxx: Best for Power
The H&S Motorsports Mini Maxx is a powerhouse tuner for the 6.7 Powerstroke, known for delivering up to 120 horsepower gains. Based on owner feedback and the spec sheets, it offers aggressive tuning options, including a race tune, and supports EGR and DPF delete for off-road use. The Mini Maxx also features data logging and can be custom tuned by H&S dealers. In our evaluation, this tuner is the top choice for owners seeking maximum performance and are willing to operate off-road.
However, the Mini Maxx is not street legal in many areas due to emissions delete capabilities, and it may void your warranty. We recommend this tuner only for off-road or competition use. If you need a street-legal tuner, consider the Edge or SCT options instead.
- Aggressive tuning for maximum horsepower gains
- Supports EGR and DPF delete (off-road use only)
- Includes data logging and custom tuning support
Pros: Highest power gains among evaluated tuners; Off-road delete capability for serious enthusiasts
Cons: Not emissions-legal; for off-road use only
5. DiabloSport i3 Platinum: Easiest to Use
The DiabloSport i3 Platinum is designed for ease of use, featuring a straightforward touchscreen interface and pre-loaded tunes that are simple to select. According to manufacturer specifications and owner feedback, it provides up to 70 horsepower gains, which is modest compared to others. The i3 also offers Wi-Fi connectivity for easy updates. In our evaluation, this tuner is ideal for owners who want a hassle-free experience and do not need extreme power levels.
However, the i3 Platinum’s performance gains are lower, and it lacks advanced monitoring features like EGT gauges. We recommend this tuner for beginners or those who prioritize simplicity over maximum power. If you need more aggressive tuning or data logging, look at the Edge or H&S options.
- Intuitive touchscreen interface with simple menus
- Pre-loaded with performance, towing, and economy tunes
- Includes Wi-Fi connectivity for updates
Pros: Very easy to install and navigate; Wireless updates via Wi-Fi
Cons: Lower peak power gains compared to competitors
6. EcoDiesel Tuner by GDE (Green Diesel Engineering): Best for Economy
The Green Diesel Engineering tuner is tailored for the 6.7 Powerstroke with a focus on fuel economy and emissions compliance. According to owner feedback and the spec sheets, it offers up to 50 horsepower gains while maintaining safe operating temperatures. The tune is designed to be smooth and reliable, making it a good choice for daily drivers. In our evaluation, the GDE tuner is a solid option for those who want better mileage and drivability without compromising legality.
However, the power gains are lower, and the tuner lacks the flashy features of competitors like the Edge CTS3. We recommend this tuner for owners who prioritize fuel savings and street legality over maximum horsepower. If you want more power or monitoring capabilities, consider other options.
- Optimized for fuel economy and drivability
- Emissions-compliant; does not require delete
- Smooth power delivery with safe EGTs
Pros: Improves fuel economy without sacrificing reliability; Legal for street use
Cons: Modest power gains compared to other tuners
7. Pulse Performance Products Pulse: Budget Pick
The Pulse Performance Products Pulse is a budget-friendly tuner that offers basic tuning capabilities for the 6.7 Powerstroke. Based on owner feedback and the spec sheets, it provides up to 60 horsepower gains with pre-set tunes for economy and performance. The Pulse is a plug-and-play device with no display, making it one of the simplest options available. In our evaluation, this tuner is a good entry point for owners who want a modest performance boost without spending much.
However, the Pulse lacks monitoring features, and its tuning options are limited. We recommend this tuner only for those on a tight budget who do not need advanced features. If you want data logging or multiple tune levels, spend more on a tuner like the SCT BDX or Edge CTS3.
- Plug-and-play installation, no display needed
- Pre-set tunes for economy and performance
- Affordable entry-level option
Pros: Very low cost for a tuner; Simple installation
Cons: No real-time monitoring or data logging; Limited tuning options
Frequently Asked Questions
Will a tuner void my 6.7 Powerstroke warranty?
Yes, installing a tuner can void your factory warranty, especially if the tune is detected during a warranty claim. Some tuners offer a “return to stock” option, but dealers may still detect that the ECU has been flashed. It is important to check with your dealer and consider the risks before tuning.
What is the best diesel tuner for towing with a 6.7 Powerstroke?
We recommend the Bully Dog BDX GT Platinum for towing due to its dedicated towing tune and EGT monitoring. It optimizes shift points and keeps temperatures safe under load. The Edge Evolution CTS3 is also a strong choice with its comprehensive monitoring.
Can I use a diesel tuner on a 6.7 Powerstroke without deleting emissions?
Yes, many tuners offer emissions-compliant tunes that do not require deleting EGR or DPF. The Edge CTS3, SCT BDX, and Green Diesel Engineering tuner are examples. However, tuners like the H&S Mini Maxx are designed for off-road use with delete support.
How much horsepower can I gain from a 6.7 Powerstroke tuner?
Horsepower gains vary by tuner and tune level. Most tuners offer between 50 and 120 horsepower gains. The H&S Mini Maxx can deliver up to 120 HP, while the Green Diesel Engineering tuner provides around 50 HP. Gains also depend on other modifications and fuel quality.
Do I need a tuner with a display or data logging?
It depends on your needs. A display and data logging are useful for monitoring EGT, boost, and transmission temperature, especially when towing or pushing high power. Tuners like the Edge CTS3 and Bully Dog BDX GT Platinum include displays. Basic tuners like the Pulse do not have displays but are simpler and cheaper.
Our Verdict
After researching and comparing the top diesel tuners for the 6.7 Powerstroke, our top pick is the Edge Evolution CTS3 for its excellent balance of performance, monitoring features, and ease of use. For those on a budget, the SCT Performance BDX offers great value. If towing is your priority, the Bully Dog BDX GT Platinum is the best choice.
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