Chevrolet, GMC (6.6) Computer Chip Programmer - Edge Products - 26401

EvoHT2 20-23 GM Diesel Kit. It is strongly recommended that a battery charger be used during the ECM/TCM Unlock to ensure no voltage drop interrupts the process leaving an ECM in-operable. EvoHT2 with ECM/TCM Unlock for 2020-2023 GM L5P Duramax

Unlock the full potential of your 2017-2023 Chevy Silverado or GMC Sierra 6.6L L5P Duramax with the Edge EvoHT2 Handheld Tuner, the easy-to-use and budget-friendly flash tuner built for real-world performance.

The EvoHT2 comes preloaded with proven tunes designed specifically for towing, daily driving, fuel economy, and all-out performance, so you can select the calibration that best fits your needs. Just flash the ECM, unplug the device, and store it away, it's that simple.

To enable tuning on the latest L5P Duramax platform, the Edge Locksmith tool is required (included) to unlock the factory ECM and TCM. Once unlocked, the EvoHT2 gives you access to safe, emissions-compliant power gains that improve throttle response, drivability, and pulling strength.

Whether you're towing heavy trailers, commuting every day, or just want a stronger, more efficient truck, the EvoHT2 provides results you can feel immediately.

Beyond performance, the EvoHT2 also serves as a diagnostic tool, allowing you to quickly read and clear DTCs without an expensive shop visit.

Built on Edge Products' 20+ years of tuning expertise, the EvoHT2 is the perfect solution for Duramax owners who want reliable power, simple installation, and proven performance in an affordable handheld device.

A PC and our downloadable Update Agent software will be required in order to complete this tune process


Device can unlock and tune only one vehicle. Once the ECM/TCM is unlocked and flashed, the flash can be returned to factory settings, but the Unlock process can not be reversed. If VIN lock and ECM Unlock has been completed, device is non-returnable


In-vehicle ECM unlock with industry's first ECM/TCM unlock tool

TCM Unlock cable and transmission tuning included for better shift performance

Adds up to 125hp/275tq to the tires

Heavy Trailer 50hp/100tq, Economy 75hp/160tq, Light Trailer 90hp/180tq, Extreme 125hp/275tq

Extreme tune gains approximately 157hp at 3200 rpm's


Throttle Boost feature allows user adjustable pedal sensitivity (5-50 percent over stock)


Remember last button setting for exhaust brake, tow/haul, and grade braking


Calibrate speedometer for tire sizes 26-38 inch

Disable Top Speed Limiter

Adjust speed and rev limiters

TPMS Adjust

Read and clear DTC's

Adjust Idle Up feature for 600-1800rpms

Command manual DPF regeneration cycle

Allison Transmission Relearn

Enable/Disable/Reset Intake Air Filter Monitor System

Begin/Abort Crankshaft Position Sensor Learn

Great for daily driving and towing performance

Tuning has passed all in-house emissions testing with CARB EO submissions being processed

Calibrations developed to offer clean, efficient DPF friendly performance

Most cost effective way to add performance tuning to your L5P on the market today


Great option for owners already running our popular Insight CTS3 monitor but now crave added power