FITMENT
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2007.5-2014 6.6L GM Duramax LMM LML V8 Turbo Diesel.
- Dual fuel tanks on Cab & Chassis, and LGH trucks are not supported.
DESCRIPTION
Product Overview
- Unlock maximum horsepower, throttle response, and towing capability from your GM diesel with the Seguler Mini Maxx V2 Performance Race Tuner. Specially calibrated for 2007.5–2014 GM Duramax 6.6L LMM and LML 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 (LML models), 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 this Mini Maxx V2 tuner support both Duramax LMM (2007.5–2010) and LML (2011–2014) engines?
A: Yes. The tuner comes pre-loaded with firmware and tuning routines tailored for both the 6.6L LMM and 6.6L LML Duramax engine platforms.
Q: Will this tuner clear CEL caused by deleting the DEF tank on a 2011–2014 LML Duramax?
A: Yes. The pre-loaded delete software turns off diagnostic monitoring for DEF fluid level sensors, heaters, DEF injection pumps, DPF pressure sensors, and EGR position valves, keeping your dash clear of CELs and limp mode.
Q: Do I need an unlocked ECM or bench flashing for 2011–2014 LML Duramax trucks?
A: No. Unlike 2017+ Duramax models that require ECM bench unlocking, the 2011–2014 LML ECM can be flashed directly through the factory OBDII port under steering wheel using the Mini Maxx V2.
Q: Can I turn off the DEF speed limiter countdown on a 2012 Silverado HD if the DEF tank is already empty or broken?
A: Yes. Flashing the LML delete tune immediately bypasses all DEF fluid level sensors, pump errors, and heater fault codes, clearing the speed-limiter countdown and bringing your truck out of limp mode instantly.
