Edge Evolution CTS3 - 20-23 GM 2500/3500 6.6L (Gas)

Product Name: Edge Evolution CTS3 - 20-23 GM 2500/3500 6.6L (Gas)
Manufacturer: Edge
Manufacturer Part #: 85453-K
Thoroughbred Diesel Part #: EDG85453-K
Fitment Notes: 20-23 GM 2500/3500 6.6L (Gas)

The Edge Evolution CTS3 is the ultimate flash tuner and digital monitor for 2020–2023 Chevy Silverado HD and GMC Sierra HD trucks with the 6.6L L8T gas engine, delivering proven power gains, improved drivability, and advanced control in one sleek package. Every kit comes with the Edge Locksmith tool, allowing you to unlock your truck’s ECM safely through the OBD-II port. Once unlocked, you gain access to preloaded, emissions-friendly calibrations tailored for daily driving, towing, fuel economy, and performance—giving you noticeable horsepower and torque improvements where you need them most.

At the heart of the system is the industry-leading CTS3 5-inch touchscreen monitor, providing live data, customizable gauge layouts, and built-in diagnostics to read and clear DTCs. Beyond tuning, the Evolution CTS3 offers an impressive range of adjustable features, including tire size recalibration, speed limiter changes, and more so your truck performs exactly the way you want.

The Evolution CTS3 also sets itself apart with advanced transmission tuning support, giving you the ability to optimize shift strategies for heavy towing or aggressive driving. The result is smoother shifting, improved throttle response, and better towing performance for the heavy-duty work your truck was built for.

Backed by Edge Products’ 20+ years of tuning expertise, the Evolution CTS3 for the 6.6L L8T gas engine is the smart upgrade for HD truck owners who want affordable power, advanced adjustability, and the industry’s best digital monitor all in one package.

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

Edge Evolution CTS3 Features:

• 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
• For more information on Edge call us at 1-859-737-4966.

Emissions:

• 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.

Specs