Edge 26401 EVOHT2 Tuner with ECM/TCM Unlock Built-In | 2020-2023 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax L5P

Features:

• In-vehicle ECM and TCM unlock included
• Adds up to 125hp and 275tq at wheels
• Includes 10-speed Allison trans tuning
• Four preloaded tunes for every driving need
• Throttle boost with adjustable pedal response
• Speedometer calibration for 26-38” tires
• Read and clear diagnostic trouble codes
• Manual DPF regen command feature
• Adjust speed and rev limiters
• Idle Up adjustment from 600–1800 RPM
• Supports TPMS and top speed adjustments
• Affordable, all-in-one tuning solution

User-Friendly Tuning Device Unlocks More Power and Performance

If you've been holding off on tuning your 2020–2023 L5P Duramax because of the hassle of unlocking the ECM, the Edge EVOHT2 Tuner with Built-In ECM/TCM Unlock changes the game. This isn’t just another handheld tuner—it’s a full-featured tuning solution that gives you control over both the engine and transmission, all without ever removing the ECM or sending anything across the country. Using Edge’s innovative Locksmith unlock system and included cables, the EVOHT2 lets you perform a full in-vehicle ECM and TCM unlock. There are no complicated ECM swaps, no downtime, and no hidden fees for unlock credits or transmission tuning—it’s all included, right out of the box. Once unlocked, you’re free to flash one of four preloaded performance tunes, each designed to match your driving needs—whether you’re daily driving, towing, chasing mileage, or going all-in on horsepower.

Doubles as A Monitoring Device

At its peak, the EVOHT2 can add up to 125 horsepower and 275 lb-ft of torque at the wheels, along with quicker turbo spool-up and crisper throttle response. The 10-speed transmission tuning is just as impressive, dialing in line pressure, torque converter lock-up, and shift timing to match the added power. It transforms the way your truck drives—especially when towing or under load. Beyond performance, this tuner is packed with smart features. You can calibrate your speedometer for tire sizes up to 38 inches, adjust rev and speed limiters, run a manual DPF regen, and even tweak the Idle Up feature to help with cold starts or PTO setups. It also includes TPMS adjustments, diagnostic trouble code reading and clearing, and support for key features like the exhaust brake memory and Tow/Haul mode recall. Better yet, the EVOHT2 plugs directly into your OBD-II port and walks you through the tuning process with a full-color screen and easy-to-follow interface. A PC with Edge’s Update Agent software is required to prep the tuner before flashing, but once you’re set up, it’s a smooth, straightforward install.

Fits:

• 2020-2023 Chevrolet Silverado 2500HD 6.6L Duramax L5P
• 2020-2023 Chevrolet Silverado 3500HD 6.6L Duramax L5P
• 2020-2023 GMC Sierra 2500HD 6.6L Duramax L5P
• 2020-2023 GMC Sierra 3500HD 6.6L Duramax L5P

Emissions: This product is NOT LEGAL FOR SALE OR USE IN THE STATE OF CALIFORNIA. Testing with the California Air Resources Board, in order to achieve 50-state compliance, is pending with CARB. Once testing is complete with California, and an E.O. number is issued, this product will be updated to 50-state legal status.

Install Instructions