2020-2023 Duramax Evolution CTS3 w/ Locksmith (85400-261)

The complete all-in-one ECM/TCM unlocking & tuning device for your Duramax, with the infamous touch screen monitor & featuring the revolutionary locksmith device with the unlock cable; this Edge CTS3 saves you time & money on top of giving your Duramax improved throttle response, quicker turbo spool-up, better fuel economy & user control.

Part Number: 85400-261

• In-vehicle ECM/TCM unlock
• Adds up to 125hp/275tq to the tires at Peak RPM's
• Monitor displays important data like Soot, Miles Since Last Regen, EGT's, Boost and Fluid Temperatures
• 10-speed transmission tuning included, with choice of four calibrations to fine tune your experience (Economy, Tow, Performance, Extreme)
• Throttle Boost feature allows user adjustable pedal sensitivity
• 1.3 seconds faster in the 1/4-mile, gained 8mph!
• Remember last button setting for drive mode, exhaust brake, tow/haul, and grade braking
• Calibrate speedometer for tire sizes 26-38"
• Command manual DPF regeneration cycle
• Allison Transmission Relearn
• Adjust speed and rev limiters
• Read and clear DTC's
• Adjust Idle Up feature for 600-1800rpms
• Great for daily driving and towing performance
• Tuning has passed all in-house emissions testing with CARB EO submissions being processed
• Calibrations developed to offer clean, efficient DPF friendly performance
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• Economy (50hp/100tq)
• Towing (75hp/160tq)
• Performance (90hp/180tq)
• Extreme (125hp/275tq) *Peak RPM Gains

• A PC and the 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 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-ret

Don't see your question? Ask us anything about this product.

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  Is this DPF OFF safe? Or a piggy back device?

  This is a flash tuner, not a piggyback device, but it is strictly an emissions-compliant performance tool.