Mini Maxx V2 Diesel Tuner | New
Type: Tuners
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Ordering 6 or more units?
Call JS Speed Shop at 604 953 9890 before ordering for bulk pricing and current availability.
One new Mini Maxx V2 with preloaded diesel tuning, live engine data and diagnostic-code reading in one device. This single-SKU listing is for selected Ford Powerstroke, Dodge/RAM Cummins and Chevrolet/GMC Duramax applications. Available functions depend on the truck, engine-computer software and vehicle configuration.
Application:Â This is an emissions-delete tuner for compatible off-road and competition setups. It does not support operation with factory emissions systems. Exhaust and EGR hardware are not included with the standard tuner package.
Important for RAM owners:Â This listing does not include the separate 2018+ RAM security-bypass package. Owners of 2018-2021 RAM trucks must call JS Speed Shop before ordering.
What the Mini Maxx V2 Offers
- Preloaded engine calibrations:Â Supplied tuning for supported applications. Available settings vary by truck and software.
- Digital engine monitoring:Â View supported engine readings on the tuner display. Gauge availability varies by application and connected equipment.
- Diagnostic code reading:Â Read and clear diagnostic trouble codes. Clearing a code does not repair the underlying fault.
- V2 software updates:Â Update through the SD card using V2-specific instructions and files.
Vehicle Compatibility
Start with the guide below, then review the notes. Engine-computer software, transmission and chassis configuration can affect compatibility and available functions.
| Engine / vehicle | Model years | Application guide |
|---|---|---|
| Ford 6.4L Powerstroke | 2008-2010 | F-250-F-550, including supported cab-and-chassis configurations. |
| Ford 6.7L Powerstroke | 2011-2019 | F-250 / F-350 pickups. Cab-and-chassis models are not listed as supported. |
| Chevrolet / GMC 6.6L Duramax | 2007.5-2010 | Selected Silverado / Sierra HD and cab-and-chassis applications. |
| Chevrolet / GMC 6.6L Duramax LML | 2011-2016 | Selected Silverado / Sierra HD and cab-and-chassis applications, subject to the limitations below. |
| Dodge/RAM 6.7L Cummins | 2007.5-2009 | Selected RAM 2500-5500 applications. |
| RAM 6.7L Cummins | 2010-2012 | RAM 2500 / 3500 pickups only. Cab-and-chassis and 4500 / 5500 models are unsupported. |
| RAM 6.7L Cummins | 2013-2017 | Selected RAM 2500-5500 applications. Review the RAM software note below. |
Important Application Notes
- 2018-2021 RAM:Â Not included in this listing. These trucks require V2-specific security-bypass equipment and compatible PCM software. Call before ordering.
- RAM 2013-2017:Â Published support information reports boost-related limitations. Contact JS Speed Shop about the supplied software and current restrictions for your truck.
- Duramax LML:Â Published limitations include unavailable boost display, tire-size adjustment and speed-limiter adjustment. Dual-fuel-tank configurations are unsupported. LGH applications are excluded.
- Power-level switching:Â Shift-on-the-fly support varies by application and software. It is not universal across the vehicles listed above.
Need help checking your truck? Call 604 953 9890 with its year, model, engine and chassis configuration.
What's Included
- Mini Maxx V2 display and windshield mount
- OBD-II adapter box and HDMI cable
- Power connection hardware, including fuse tap
- SD card, card reader / USB adapter and USB cable
- Preloaded V2 tuning software
Package confirmation:Â The final contents should match the photographs and packing list for this supplier batch. Contact JS Speed Shop if a specific cable or accessory is essential to your installation.
Additional Equipment and Installation
- Exhaust-temperature monitoring:Â Requires a compatible aftermarket EGT sensor and docking station. The V2 does not support factory EGT probes.
- Programming preparation:Â Follow the current installation guide and use a battery charger capable of a steady 10A supply.
- Vehicle preparation:Â Address emissions-related dash messages while the truck is stock, install the tuner before hard parts and do not disconnect it while programming.
- Professional installation:Â Recommended for correct preparation, compatible hardware and final checks.
Questions Before You Buy
Does the V2 support custom tuning?
No. The published V2 FAQ states that custom tuning and Overdrive transmission tuning are not supported.
How much extra power or fuel economy should I expect?
Results depend on the application, calibration, vehicle condition and supporting equipment. A single horsepower or fuel-saving figure cannot accurately represent every vehicle listed here.
Will it fix a DEF warning, check-engine light or limp mode?
These symptoms require diagnosis. The tuner should not be treated as a guaranteed repair for an unknown fault, failed sensor or damaged component.
Do you offer bulk pricing?
Yes. For orders of 6 or more units, call JS Speed Shop at 604 953 9890 before ordering for current bulk pricing and availability.
Installation and Support Resources
- Mini Maxx quick-start guide
- Installation video
- Published compatibility chart
- Application limitations and known issues
- V2 update instructions
- V2 support FAQ
Speak With JS Speed Shop
Get practical help with fitment, equipment and ordering from our team in Mission, BC. Call 604 953 9890 or contact JS Speed Shop.
Intended use:Â Off-road and competition applications only. Confirm the requirements for your vehicle and location before purchasing or installing.
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While we ship with all required USMCA/CUSMA paperwork, U.S. Customs or carriers may still apply duties or fees at delivery. For details, see U.S. Customs & Border Protection
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Return Policies
Your satisfaction is important to us. If you wish to return an item or request a refund, please review the terms and conditions outlined in our Returns Policy.
Important Notices
- Off‑Road Use Only
Products sold by JS Speed are intended for off‑road use and may be illegal on public roads where emissions or pollution‑control laws apply. - Check Local Laws
Before purchasing or installing, verify all applicable local, state/provincial, and federal regulations to ensure the modification is legal in your area. - Professional Installation Recommended
These parts should be installed by qualified professional mechanics. Improper installation can cause performance issues or vehicle damage. Unless a product page explicitly states otherwise, installation instructions are not included. Components are designed for users with solid mechanical knowledge, and minor adjustments or modifications may be required for proper fitment. Returns or refunds cannot be accepted due to difficulty completing an installation or the absence of instructions. - Warranty Impact
Use of these parts may void your vehicle’s factory warranty. Confirm with your vehicle manufacturer before purchase and installation. - Limitation of Liability
JS Speed is not responsible for damage, failures, or issues arising from the use or installation of these products. - Product Images
Images are for illustration only and may differ from the actual product due to manufacturer updates or improvements. - No Performance Guarantees
While these products are designed to enhance performance, JS Speed does not guarantee specific performance results.
