2015.5-2016 6.6L Duramax Mini Maxx Tuner-V2 DPF/DEF/EGR Delete

FITMENT

• 2015.5-2016 6.6L GM Duramax LML V8 Turbo Diesel.
  
• Dual fuel tanks on Cab & Chassis, and LGH trucks are not supported.
• LML GM Duramax models are undergoing a fix for unregistered boost levels (MAP sensor issue).

DESCRIPTION

Product Overview

• Late 2015.5–2016 Chevy Silverado HD and GMC Sierra HD trucks equipped with the 6.6L Duramax LML deliver strong towing performance, but factory DPF, DEF, and EGR systems can increase maintenance demands, trigger regeneration cycles, and affect exhaust flow over time.
  
• The Mini Maxx V2 Tuner is designed for late-model LML ECM applications. Featuring upgraded V2 hardware, faster processing, and improved software stability, it provides dedicated tuning support for modified Duramax setups with real-time digital monitoring and improved drivability.

Key Features

• Shift-On-The-Fly Tune Levels: Easily switch between available power settings such as Stock, Tow, Street, and Performance modes through the tuner interface.
  
• Real-Time Digital Gauge Monitoring: Displays important engine parameters including Boost Pressure, EGT, Coolant Temperature, Transmission Temperature, Fuel Pressure, and Battery Voltage.
  
• OBD-II Code Reader & Clear Function: Reads and clears diagnostic trouble codes (DTCs) to help identify issues and reduce unnecessary service visits.
• Tuning Support: Provides ECU calibration support for modified emissions configurations, helping optimize engine performance and reduce related diagnostic issues when properly configured.
  

FAQ

Q: How do I identify my 2015 Duramax exhaust connection style?

A: 2015 was a split model year. Early trucks may use a band clamp connection, while later 2015.5–2016 models typically use a 3-bolt flange. Verify your connection before ordering.

Q: Will this tuner support DEF-related warnings?

A: The tuner provides calibration support for modified DEF/SCR configurations on 2015–2016 LML Duramax trucks.

Q: What parts are recommended to pair with this tuner?

A: This tuner can be paired with compatible LML DPF delete pipes and EGR delete kits for 2015–2016 Duramax applications.

Q: Why doesn't my Mini Maxx V2 display live Boost Pressure on my Duramax LML?

A: Some LML trucks may experience missing or incorrect boost readings due to MAP sensor PID compatibility between the tuner software and factory ECM communication. Updating the tuner with the latest LML boost patch can restore proper boost display.