Product Description

EDGE PRODUCTS 85453-K EVOLUTION CTS3 2020–2023 SILVERADO/SIERRA 2500/3500 6.6L GAS UNLOCKING AND FLASHING

The EDGE PRODUCTS 85453-K EVOLUTION CTS3 is the complete unlocking and tuning solution for 2020–2023 Chevrolet Silverado and GMC Sierra 2500/3500 trucks equipped with the 6.6L L8T gasoline engine. This kit includes both the and the required ECM unlock hardware needed for 2020+ GM gas applications, allowing owners to safely flash performance calibrations and enable custom tuning support on their truck. edge products 85453-k evolution cts3, gm 6.6l gas tuning kit, 2020 silverado gas unlock, 2021 sierra 6.6l tuner, cpp diesel gm gas performance tuner, chevy 2500 6.6l gas tuning edge, gmc 3500 6.6l flash tuner 85453-k

From towing to daily driving to performance use, the 6.6L L8T engine is highly responsive to proper tuning. The Evolution CTS3 delivers improved throttle response, enhanced shifting, increased power under load, optimized torque delivery, and real-time data monitoring — all through Edge’s industry-leading touchscreen interface. edge evolution cts3 performance tuner, gm 6.6l gas flash tool for tuning, edge monitor tuning calibrations cts3

WHAT’S INCLUDED IN THE EDGE 85453-K KIT

• Edge Evolution CTS3 Monitor/Tuner – full-color capacitive touchscreen with data logging, monitoring, and flash tuning capabilities.
• Required GM 6.6L Gas Unlock Hardware – enables ECM unlocking and flashing for 2020–2023 applications.
• OBD-II Harnessing – plug-and-play connectivity for tuning and real-time monitoring.
• Mounting Hardware & USB Cable – everything needed for dashboard installation.

FITMENT — 85453-K COMPATIBLE VEHICLES

This Evolution CTS3 kit fits the following GM trucks equipped with the 6.6L L8T gasoline engine:

• 2020 Chevrolet Silverado 2500 / 3500 6.6L Gas
• 2021 Chevrolet Silverado 2500 / 3500 6.6L Gas
• 2022 Chevrolet Silverado 2500 / 3500 6.6L Gas
• 2023 Chevrolet Silverado 2500 / 3500 6.6L Gas
• 2020 GMC Sierra 2500 / 3500 6.6L Gas
• 2021 GMC Sierra 2500 / 3500 6.6L Gas
• 2022 GMC Sierra 2500 / 3500 6.6L Gas
• 2023 GMC Sierra 2500 / 3500 6.6L Gas

BENEFITS OF TUNING THE 6.6L L8T WITH EDGE CTS3

• Improved throttle response
• Optimized shift points & transmission behavior
• Increased torque under load
• Better acceleration and drivability
• Ability to flash calibrations after ECM unlock
• Full digital gauge display & customizable layouts
• On-screen diagnostics, DTC reading/clearing

CROSS-REFERENCE EDGE PRODUCTS AT CPP DIESEL

Enhance your CTS3 setup with these compatible accessories on cppdiesel.com:

• EDGE PRODUCTS 84130-3 INSIGHT CTS3 UNIVERSAL OBD-II MONITORING
• EDGE PRODUCTS 98203 CTS3/T2/DASHPAQ+ BACKUP CAMERA KIT
• EDGE PRODUCTS 98602 EAS STARTER KIT COMPATIBLE W/ CS2/CTS2/CTS3
• EDGE PRODUCTS 98623 EAS STREET DIESEL KIT

FREQUENTLY ASKED QUESTIONS

Does the 85453-K kit include the required ECM unlock tools?

Yes. This kit includes the mandatory unlock hardware needed for 2020+ GM 6.6L gas ECM flashing.

Will this tuner work without unlocking the ECM?

No. GM’s 2020+ gas ECMs are locked from the factory. The included unlock components must be used before tuning can occur.

Does the CTS3 stay plugged into the truck?

No. The CTS3 Evolution can flash the ECM and then be removed, or it can stay installed as a digital gauge display.

Can this kit read and clear diagnostic trouble codes?

Yes. The CTS3 platform includes advanced diagnostics and DTC clearing functionality.

Is the 85453-K legal for on-road use?

Emissions legality varies by region. Always check your local/state regulations before tuning.

SPECIFICATIONS