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What is a Mini Maxx Tuner? | Complete Guide & Details
What Is the Mini Maxx Tuner?
The Mini Maxx Tuner is a versatile device that allows diesel truck owners to modify their engines for maximum power and efficiency. This tuner supports popular truck models such as Ford Powerstroke, Dodge Cummins, and Chevy Duramax. It is particularly effective in increasing horsepower, torque, and fuel efficiency by deleting emissions components that can restrict performance.
MINI MAXX V1 vs. V2: Which One is Right for You?
Choosing between the V1 and V2 isn't just about picking the "newest" model—it's about finding the perfect match for your specific truck and tuning goals. Let's break it down in simple terms.
Mini Maxx V1 Tuner
- Perfect for early model diesel trucks
- Proven reliability and stability
- Customizable tuning options
- OBDII diagnostics built-in
- Budget-friendly performance
Mini Maxx V2 Tuner
- Supports newer diesel models
- Advanced tuning capabilities
- Real-time vehicle monitoring
- Wireless update capability
- Future-ready technology
Your 3-Step Decision Guide
Not sure which tuner to choose? Follow this simple process:
This is the most important factor. Match your truck's make, model, and year with our compatibility tables below.
Are you looking for basic performance gains or advanced tuning? V1 offers proven reliability, while V2 provides cutting-edge features.
Look at the specific features for each model and check out our diesel tuning blog for more insights from real users.
Vehicle Compatibility: Which Mini Maxx Tuner Fits Your Truck?
This is where your decision really starts. The wrong choice here means the tuner won't work with your truck. Take a moment to find your vehicle below.
Mini Maxx V1 Compatible Vehicles
| Brand | Engine & Years | Tuning Notes |
|---|---|---|
| Dodge | 2007.5–2009 6.7L Cummins 2010–2012 6.7L Cummins 2013–2017 6.7L Cummins |
2010–2012 Cummins: Pickup models only; Cab & Chassis not supported. |
| Ford | 2008–2010 6.4L Powerstroke 2011–2016 6.7L Powerstroke 2017–2019 6.7L Powerstroke |
Pickup-only on select years; No SOTF on 2017–2019 |
| GM | 2007.5–2010 6.6L Duramax 2011–2016 6.6L Duramax |
No SOTF on 2011–2016 models |
Mini Maxx V2 Compatible Vehicles
| Brand | Engine & Years | Important Notes |
|---|---|---|
| GM | 2007.5-2010 6.6L Duramax 2011-2016 6.6L Duramax |
2011-2016 models: No Shift-on-the-Fly (SOTF) |
| Ford | 2008-2010 6.4L Powerstroke 2011-2019 6.7L Powerstroke |
2017-2019: No SOTF, Pickup models only |
| Dodge | 2007.5-2017 6.7L Cummins | 2010-2012: Pickup only, 2013-2017: Full range |
Detailed Vehicle Fitment for Mini Maxx V2 Diesel Tuner
GM Fitment
| Year Range | Engine | Models | Notes |
|---|---|---|---|
| 2007.5–2010 | Duramax 6.6L | 2500HD / 3500HD / 4500HD / 5500HD | — |
| 2011–2016 | Duramax 6.6L | 2500HD / 3500HD / 4500HD / 5500HD | No SOTF |
Ford Fitment
| Year Range | Engine | Models | Notes |
|---|---|---|---|
| 2008–2010 | Powerstroke 6.4L | F-250 / F-350 / F-450 / F-550 | — |
| 2011–2016 | Powerstroke 6.7L | F-250 / F-350 | Pickup Only |
| 2017–2019 | Powerstroke 6.7L | F-250 / F-350 | Pickup Only, No SOTF |
Dodge Ram Fitment
| Year Range | Engine | Models | Notes |
|---|---|---|---|
| 2007.5–2009 | Cummins 6.7L | 2500 / 3500 / 4500 / 5500 | — |
| 2010–2012 | Cummins 6.7L | 2500 / 3500 | Pickup Only |
| 2013–2017 | Cummins 6.7L | 2500 / 3500 / 4500 / 5500 | — |
Known Issues, Limitations & Required Notes (Read Before Installing a MINI Maxx to your DIESEL TRUCK)
The H&S Mini Maxx V2 is built for deleted, off-road/race applications. To avoid install problems, false readings or driveability issues, review the notes below for your platform before ordering and before flashing.
All Vehicles
- Factory pyrometer/EGT probes are not supported. The Mini Maxx V2 will not work with OEM EGT/pyro probes. Unplug all factory EGT probes before operation.
- If you require exhaust gas temperature monitoring, add a docking station to the Mini Maxx V2 and use a compatible EGT solution.
2013–2021 RAM Cummins
- Boost drop to ~20 PSI: Some trucks may experience boost falling off to approximately 20 PSI. A BETA file in the latest update provides a temporary improvement for 2013–2018 models (typically 3–500 miles), but there is currently no confirmed fix for 2019–2021.
2014–2015 RAM Cummins
- Loping/Surging: Some 2014–2015 RAM trucks may exhibit a loping or surging condition. Updating the tuner to version 2.0.0.4 or newer should address this on affected vehicles.
2011+ Ford Power Stroke
- P24C6 / P24DA PMS codes (older software): Some devices running older firmware may set P24C6 or P24DA. This is related to earlier calibrations and certain PCMs, not an install error. As of October 2023, the issue has been corrected—update your device if you see these codes.
- SOTF power-mode switching (rare): Certain PCM software versions may not cooperate with the Mini Maxx V2 Shift-On-The-Fly strategy and may not change power modes. This is uncommon and reported to affect roughly 7% of 2011–2019 Ford applications.
2016 Ford Power Stroke
- CEL P04E3 (PCV sensor not present): The 2016 model year may set a check engine light for P04E3 because the truck does not contain a PCV sensor the Mini Maxx V2 expects. If you have this code, download the fix file, extract it, copy MGGDT.IT1 into the FORD folder on the SD card, then update the tuner firmware and reinstall the tune. Only use this fix if your truck is showing P04E3.
2011+ Duramax LML
- Dual fuel tanks not supported: On LML Cab & Chassis trucks with dual tanks, the Mini Maxx V2 may disable the rear tank. This configuration is not advised.
- Boost gauge will not function on these applications.
- Tire size changes and speed limiter adjustments are not available on these applications.
2018+ RAM Cummins
- “Part number not currently supported”: The tuner supports the original PCM software where the part number starts with a number. If your PCM part number starts with a letter, the tuner may not function. First try the latest update; if the issue remains, contact your retailer for support or return options.
2017–2019 Ford Power Stroke
- Factory EGT sensor not supported: Current tunes do not support the OEM EGT sensor. Earlier model years may show incorrect pyro data; on 2017+ trucks it can cause boost drop-off and a no-power feel. The immediate fix is to unplug the EGT sensor and clear codes. A future update is expected to address this, but EGT readout will remain unavailable until corrected.
- Throttle Position gauge: The Throttle Position gauge is not supported. Do not use this gauge.
Straight Talk: When to Choose V1 vs. V2
Choose the Mini Maxx V1 if:
- You own an older diesel truck (especially pre-2011 models)
- You want proven, stable tuning that's stood the test of time
- Budget is a primary consideration
- You have a Ford 6.0L or 6.4L, early Cummins, or LMM/LML Duramax
The V1 has been around long enough that most issues have been worked out. It's like that reliable old tool in your garage that always gets the job done. As one of our customers put it in their review, "It just works, every single time."
Choose the Mini Maxx V2 if:
- Your truck is 2011 or newer (especially 2017+ models)
- You want the latest features and wireless updates
- You're planning to keep your truck for years and want future compatibility
- You have a newer 6.7L Powerstroke or late-model Cummins/Duramax
The V2 is the modern solution with more advanced capabilities. It's important to note that while it has cutting-edge features, some users have reported known issues that come with newer technology. Always check the latest user reviews to see current experiences.
Key Features Both Models Share
- Shift-on-the-Fly capabilities for real-time performance adjustments (where supported)
- Pre-loaded with tunes suitable for a range of diesel trucks
- User-friendly interfaces with high-resolution screens
- DPF, EGR, and DEF delete capabilities for off-road use
- Advanced monitoring of vehicle parameters
Real-World Advice from Diesel Enthusiasts
Having installed hundreds of these tuners, here's what we've learned:
For Ford Owners: If you have a 6.0L or 6.4L Powerstroke, the V1 is essentially purpose-built for your truck. The tuning is optimized and stable. For 2011+ 6.7L owners, the V2 is your go-to, especially with our ALL-IN-ONE Delete Kits designed specifically for these models.
For Cummins Drivers: Early 6.7L owners (2007.5-2012) can use either, but V1 support is rock solid. Newer Rams (2013+) need the V2 for proper compatibility.
For Duramax Trucks: LMM owners (2007-2010) are perfectly served by the V1. LML owners (2011-2016) should consider that V2 offers more features, but note the Shift-on-the-Fly limitation on later models.
Don't Forget the Accessories
To get the most from your Mini Maxx, consider adding:
- T-Slot Mount for secure, clean installation
- Pyrometer for accurate EGT monitoring
- OBD to HDMI Box for larger display viewing
Why This Decision Matters
Choosing between V1 and V2 isn't about which is "better" overall—it's about which is better for your specific situation. The right tuner will:
- Work seamlessly with your truck's computer
- Provide reliable performance gains
- Offer the features you'll actually use
- Save you from compatibility headaches
We've seen too many customers try to force the wrong tuner on their truck. It leads to frustration, wasted time, and sometimes damaged components. That's why we offer detailed DPF Delete Tuners guidance and support—to make sure you get it right the first time.
Still Unsure? Here's Our Promise
At Tuner Depot, we don't just sell parts—we provide solutions. If you're still wondering which Mini Maxx is right for your truck after reading this, reach out. Our team lives and breathes diesel performance, and we'll give you straight answers based on your exact truck and goals.
Remember, both tuners deliver excellent results when matched with the right vehicle. The goal isn't to sell you the most expensive option—it's to ensure you get the performance gains you're looking for without any headaches along the way.
