- Part Number: 85400-261
- Est. Ship Time: Usually Ships In 1-2 Business Days
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Fits: 2020-2023 Gm 6.6L L5P Duramax
This is Edge's top-tier in-cab performance tuner and monitoring system designed for modern diesel trucks like the GM 6.6 L L5P Duramax (2020-2023). It combines powerful flash tuning with a full-color touchscreen monitor and the innovative Locksmith unlock cable to let you unlock and tune your engine and transmission control modules (ECM/TCM) right through the OBD-II port. Unlocks your truck’s modules straight through the OBD-II port without removing or bench-flashing the control units. Once unlocked and flashed, the current tune can be reverted to stock, but the unlock process is permanent for that vehicle.
A bright 5" capacitive touchscreen lets you monitor critical data like boost, EGTs, RPM, transmission temps, soot levels, fluid temps, and more in real time — with customizable gauge layouts and performance displays. Includes multiple tune options optimized for daily driving, towing, performance, and extreme use. You can see significant gains — often up to ~125 hp and ~275 lb-ft at the wheels — depending on the tune and vehicle setup. Supports 10-speed Allison transmission tuning with selectable calibrations to improve shifting behavior and efficiency for towing or performance driving.
- Wi-Fi enabled for quick updates without a computer.
- Built-in read/clear trouble code functions and DPF regen controls.
- Adjust speedometer for oversized tires, shift firmness, speed/rev limits, and more.
Edge: 85400-261
