Evolution CTS3 2020-2023 GM 2500/3500 6.6L Gas

2020-2023 GM 2500/3500 6.6L Gas - Unlocking and flashing

Part # 85453-K Be the first to write a review

Evolution CTS3 2020-2023 GM 2500/3500 6.6L Gas

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This part is legal under the provisions of EPA’s Tampering Policy dated November 23rd, 2020.

See Emissions Details
The market and our competition didn't think it was possible, but here it is. Evolution CTS3 for 2020-2023 6.6 Gas GM trucks with in-vehicle ECM unlocking capabilities! Our industry leading in-cabin device, the Evolution CTS3 is now an all-in-one device that can unlock your ECM, and flash our performance calibrations to the ECM and TCM then monitor everything going on under the hood with our state of the art touchscreen monitor afterwards. This all-new process completely changes everything you once knew about tuning your 6.6L L8T gas truck 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 Evolution CTS3 offers noticeable power gains (up to 28hp/50tq), with improved throttle response, better fuel economy and total control over your driving experience. Enable our 'Remember Last Setting' feature that allows your truck to remember your Drive Mode settings every time you start your truck, caliibrate for larger tires, even adjust your top speed limiter. The Evolution CTS3 is a great tuning option for the guy that wants everything in one device, with simple and easy to use touchscreen interface, great visuals, and pre-loaded tunes to meet every owners specific needs. If you're looking to improve your daily driving mileage, your towing performance or just shred some tires and bring out the most in that big V8, our Evolution CTS3 offers it all. A PC and our downloadable Update Agent software will be required in order to complete this unlock and tune process **Device can unlock and tune only one vehicle. Once the ECM 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


  • Includes ECM Unlock Harness and Locksmith Device
  • Adds 28hp/50ft-lbs
  • Calibrate for Tire Size and Gear Ratio Changes
  • Adjustable Speed and Rev Limiters
  • Remember Previous Drive Mode on Start Up
  • User Adjustable Throttle Sensitivity
  • Four preloaded tunes for Economy/Towing (87 Octane), Drive (87 Octane), Performance (91 Octane), and Extreme(91+ Octane)
  • Two transmission shift strategies to fine tune your experience, Firm Shift and Hard Shift
  • Improves power, mileage, towing performance
Brand Edge
Check Clear DTCsYes
Color Touch Screen DisplayYes
Emission Code7
Expandable Accessory System CompatibleYes
Fuel TypeGas
Performance TunesYes
Product TypeIn-Cabin Tuner
Wi-Fi UpdatesYes
Part Number85453-K

This part is legal under the provisions of EPA’s Tampering Policy dated November 23rd, 2020. The company has reasonable basis (test results) to verify that this product allows the vehicle to operate within legal emissions standards and is therefore legal to be sold for on-street use in all states that accept the legal provisions of the Clean Air Act and the EPA Tampering Policy. 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.

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      *Free Shipping & Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

      Some parts are not legal for use in California or other states with similar regulations.