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
- Take your late-model LML diesel to peak performance and bulletproof reliability with the Mini Maxx V2 Performance Race Tuner. Specially calibrated for 2015.5–2016 Duramax 6.6L trucks, the V2 delivers custom race tuning, emissions hardware removal support, and live digital gauge monitoring in one package.
- Pre-loaded with high-performance software, the Mini Maxx V2 allows you to eliminate restrictive DPF exhaust pipes, DEF fluid tanks, and EGR valves without triggering diagnostic trouble codes or speed-limiting limp modes. Experience up to 175+ additional horsepower, improved throttle response, and cooler engine operating temperatures under heavy towing loads.
Key Features
- Live Digital Gauge Display: Vibrant color digital screen monitors vital parameters in real time, including Turbo Boost, EGTs, Transmission Temp, Fuel Rail Pressure, and Coolant Temp.
- Transmission Software Calibration: Optimized tuning parameters for 68RFE, Aisin, and manual transmissions to firm up shifts and handle increased engine torque cleanly.
- Shift-on-the-Fly Adjustability: Instantly change performance levels on-the-fly while driving between Stock (+0 HP), Tow (+50 HP), Street (+100 HP), and Performance (+175+ HP).
- DPF/DEF/EGR Delete Compatible: Pre-loaded with tunes capable of turning off DPF regenerations, DEF fluid monitoring, and EGR valve functions to eliminate CEL and limp mode.
FAQ
Q: Does deleting the EGR system with this tuner help protect the CP4 injection pump on 2015–2016 models?
A: Yes. By completely blocking hot exhaust gas recirculation and abrasive soot from entering the intake manifold, engine oil stays cleaner longer, significantly reducing thermal stress and contamination risks across the fuel and valvetrain systems.
Q: How does the Mini Maxx V2 compare to using an EFI Live or HPTuners setup for a 2015–2016 LML?
A: EFI Live and HPTuners require custom tuning files, licenses, and external monitors. The Mini Maxx V2 provides a complete, pre-loaded off-road solution out of the box—combining delete-capable tunes, Shift-on-the-Fly power switching, and a live digital gauge display in one standalone unit.
Q: Do I need an aftermarket pyrometer probe to monitor EGTs on my 2015–2016 Duramax?
A: While the tuner reads factory exhaust sensors via OBDII, installing an optional manifold EGT pyrometer probe is recommended on deleted trucks for precise real-time exhaust temperature readings directly at the exhaust manifold during heavy towing.
Q: Is there any special procedure needed when returning a 2015–2016 LML Duramax back to stock settings?
A: You simply select "Return to Stock" from the Mini Maxx V2 menu. However, keep in mind that if you have physically removed the DPF filter, DEF tank, or EGR valve, you must re-install the factory emissions hardware before running the stock ECM software.
