We've done yet again, pushing the L5P tuning market into an all new era with the industry's first in-vehicle ECM unlock including TCM trans tuning for 10-speed! That's right, flash your 2020-2022 GM Diesel with the all-new EvoHT2 programmer, without removing the ECM for unlock. Using our revolutionary Locksmith device and included unlock cables, the EvoHT2 now offers complete ECM/TCM unlocking without touching the ECM. No ECM cores to deal with. No finicky ECM harnesses to disconnect. No ECM swaps required. No shipping ECM's across the country. A complete plug and play flash tuning solution for 2020-2022 GM diesel owners. The big news here for 2020+ owners is the addition of TCM support for optimal transmission performance from your 10-speed Allison. Improved shift points, better clutch holding capacity from better line pressure and converter lock-up. Finally, that 10-speed will handle everything you can throw at it whether your daily driving, towing, or just our tearing up the streets. The EvoHT2 is a great tuning option with simple and easy to use interface, color screen and great visuals, and four pre-loaded tunes to meet every owners specific needs. Whether you're looking to improve your daily driving mileage, your towing performance or just shred some tires our EvoHT2 offers it all. This all-new process completely changes everything you once knew about tuning your L5P Duramax and will lead our industry into the future with even more capabilities, saving you time and money when it comes time to modify your truck. The EvoHT2 offers massive power gains (as much as 125hp/275tq to the tires) with improved throttle response, quicker turbo spool-up, better fuel economy and total control over your driving experience. Enable our 'Remember Last Setting' feature that allows your truck to remember your drive modes like Tow/Haul, Grade Braking, and Exhaust Brake settings every time you start your truck. At less than half the cost of the competitors ECM flash options, we won't nickel and dime you with extra hardware charges, expensive tuning credits and additional transmission tuning costs. With EvoHT2 for L5P Duramax Diesel you get it all up front for less. Unlock your L5P's max potential with Edge flash tuning today! 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