Product Description
EDGE PRODUCTS 85400-262 EVOLUTION CTS3 WITH LOCKSMITH – 2017–2019 SILVERADO/SIERRA 2500/3500 6.6L DURAMAX ECM UNLOCK TUNER
Unlock L5P Power With Built-In Locksmith & CTS3 Monitoring
The EDGE PRODUCTS 85400-262 EVOLUTION CTS3 WITH LOCKSMITH is the all-in-one flash tuner and in-cab monitor built specifically for 2017–2019 Chevrolet Silverado & GMC Sierra 2500/3500 HD 6.6L L5P Duramax. Using Edge’s revolutionary Locksmith ECM unlock tool, this kit unlocks the factory ECM through the OBD-II port – no ECM removal, no mailing cores, and no downtime – then loads emissions-friendly calibrations for daily driving, towing, economy, and performance.
Once unlocked, the integrated CTS3 5" full-color touchscreen gives you real-time insight into critical parameters like EGT, boost, fuel rail pressure, transmission temperature, DPF regen status, and more. You get serious power gains with the safety and visibility you need to tow heavy and drive hard without guessing what your L5P is doing under the hood.
Key Features & Benefits
- Complete ECM unlock via Locksmith device – performs the unlock through your OBD-II port; no ECM removal or shipping required.
- Preloaded L5P calibrations for performance, towing, and economy (tune levels vary by application, fuel quality, and emissions rules).
- CTS3 5" capacitive touchscreen – high-resolution, swipe-style interface with customizable layouts and backgrounds.
- Real-time monitoring of critical engine and transmission data, including EGT, boost, fuel rail pressure, and more (PIDs vary by vehicle).
- Data logging & performance testing – record runs, view logs, and track 0–60, 1/4 mile, and other performance metrics.
- Read & clear DTCs (diagnostic trouble codes) right from the CTS3 screen – no extra scanner needed.
- On-screen alerts & safety – set up custom limits for EGT, boost, trans temp, and other parameters to protect your investment.
- Clean, reversible install – plugs into the OBD-II port with no permanent modifications; unlock and flash from the driver’s seat.
- Compatible with Edge EAS accessories like EGT kits, pressure sensors, and temperature sensors for expanded monitoring.
Vehicle Fitment
- 2017 Chevrolet Silverado 2500HD/3500HD – 6.6L Duramax L5P (pickup)
- 2018 Chevrolet Silverado 2500HD/3500HD – 6.6L Duramax L5P (pickup)
- 2019 Chevrolet Silverado 2500HD/3500HD – 6.6L Duramax L5P (pickup)
- 2017 GMC Sierra 2500HD/3500HD – 6.6L Duramax L5P (pickup)
- 2018 GMC Sierra 2500HD/3500HD – 6.6L Duramax L5P (pickup)
- 2019 GMC Sierra 2500HD/3500HD – 6.6L Duramax L5P (pickup)
Notes:
- Designed for pickup models only (not cab & chassis).
- ECM unlock required – Locksmith tool and unlock cable are included in this kit.
- Always verify legality and compatibility for your exact VIN and emission configuration before purchase or installation.
Power Gains & Tuning Strategy
While exact gains depend on fuel quality, altitude, and supporting mods, the Evolution CTS3 with Locksmith is engineered to add substantial wheel horsepower and torque over stock while maintaining safe EGT and transmission behavior for daily driving and towing. Multiple tune levels let you choose between:
- Economy – optimized for fuel efficiency and light commuting.
- Tow – improved torque and throttle response for hauling and towing.
- Street/Performance – aggressive calibration for spirited driving where conditions and regulations permit.
As always, use the appropriate tune for your load, terrain, and climate, and monitor key parameters like EGT and transmission temperature using the CTS3 to keep your L5P happy.
Recommended Edge Accessories (Cross-References)
Build a complete L5P monitoring and control package with these compatible EDGE PRODUCTS upgrades from CPP Diesel:
- EDGE PRODUCTS 28600 CS2/CTS2/CTS3 DISPLAY MOUNT FOR 2015–2019 GM SILVERADO/SIERRA 2500HD/3500HD – vehicle-specific A-pillar mount for a clean CTS3 install.
- EDGE PRODUCTS 26402 EVOHT2 WITH ECM UNLOCK TOOL FOR 2017–2019 GM L5P DURAMAX – handheld flash tuner alternative for L5P owners.
- EDGE PRODUCTS 98620 EAS EGT STARTER KIT DAILY DRIVER/TOW KIT COMPATIBLE W/ CS2/CTS2/CTS3 – EAS EGT probe and starter kit for precise exhaust gas temperature monitoring.
- EDGE PRODUCTS 98203 CAMERA KIT CTS3, T2, DASHPAQ+ CTS3 BACKUP CAMERA – integrates a license-plate backup camera directly into your CTS3 screen.
- EDGE PRODUCTS 84130-3 INSIGHT CTS3 UNIVERSAL OBD-II MONITORING – stand-alone CTS3 monitor for other vehicles in your fleet.
Emissions & Legal Use Notice
This product involves ECM unlocking and performance tuning and may be classified under specific emission codes by the manufacturer. It is the customer’s responsibility to understand and comply with all federal, state, and local emissions laws before installing or using this device. In some regions, this tuner may be not legal for sale or use on pollution-controlled vehicles, particularly in California and states that adopt California emissions standards. Always check the latest emissions information directly from Edge Products and your local regulations.
Why Buy EDGE PRODUCTS 85400-262 From CPP Diesel?
- Diesel specialists who understand L5P Duramax tuning, towing, and reliability.
- Real-world product knowledge to help you choose the right Edge setup for your build.
- Fast shipping and responsive customer support.
- Huge selection of Edge tuners, monitors, EAS accessories, and mounts – all in one place.
Specifications for EDGE PRODUCTS 85400-262
| Field | Value |
|---|---|
| Brand | Edge Products |
| Part Number | 85400-262 |
| UPC | 810065212429 |
| GTIN-14 | 00810065212429 |
| Application | 2017–2019 Chevrolet Silverado/GMC Sierra 2500HD & 3500HD 6.6L Duramax L5P (pickup) |
| Display | 5" full-color capacitive touchscreen CTS3 monitor |
| Unlock Method | Edge Locksmith ECM unlock tool via OBD-II (included) |
| Shipping Info | Typically ships via standard ground service from CPP Diesel; see cart for current rates and transit times. |
| Compatible Edge Accessories | EAS EGT kits, pressure & temperature sensors, CTS3 display mounts, backup camera kits, and other EAS modules. |
| Prop 65 Warning | This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov. |
Frequently Asked Questions
Does EDGE PRODUCTS 85400-262 require me to remove and ship my ECM?
No. The included Locksmith device performs the ECM unlock through the OBD-II port on your truck. You do not need to remove or ship the ECM, and there are no ECM core charges. Simply follow the on-screen instructions, unlock, and flash the truck in your driveway.
Is this tuner safe to use for towing with my 2017–2019 L5P Duramax?
Yes, when used correctly. The Evolution CTS3 with Locksmith includes dedicated tow-safe calibrations designed for hauling and heavy loads. Always select an appropriate tow tune, monitor EGT and transmission temperature with the CTS3, and follow Edge’s towing guidelines for your combination of weight, terrain, and climate.
Will EDGE 85400-262 work on 2020–2023 L5P trucks?
No. This part number is engineered for 2017–2019 Silverado/Sierra 2500HD/3500HD 6.6L L5P Duramax pickup models. Later L5P trucks use different ECM strategies and require part numbers and calibrations specific to those years. Always match your tuner to your exact model year range.
Can I return my truck to stock if I sell it or need dealer service?
Yes. The Evolution CTS3 stores your factory calibration and can return the truck to stock through the same OBD-II connection. Keep in mind that any ECM unlock or tuning may be detectable by a dealer or emissions inspection station, even after returning to stock. CPP Diesel and Edge Products recommend reviewing your warranty and emissions responsibilities before tuning.
Do I need any other parts to use this tuner on my L5P?
The kit includes the CTS3 monitor, Locksmith unlock device, and required cables to unlock and tune your truck. However, we strongly recommend pairing it with a vehicle-specific CTS3 display mount such as the EDGE PRODUCTS 28600 CS2/CTS2/CTS3 DISPLAY MOUNT and adding an EDGE PRODUCTS 98620 EAS EGT STARTER KIT for precise exhaust temperature monitoring on tuned and towing setups.
