Chevrolet, GMC (6.6) Computer Chip Programmer (9266-R)

  • Complete kit includes the Trinity T2 on-dash tuner plus the locksmith device and harness needed to unlock your ECM
  • Purpose-built to unlock performance on 2020–2023 GM 6.6L L8T gas trucks
  • Color touch screen with auto-dimming delivers clear in-cab monitoring day or night
  • Data logging, alerts and records, and built-in performance tests let you track and measure results
  • Wi-Fi updates and support for custom tunes from CMR keep tuning current and tailored to your truck

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$1,041.82

Out of stock
SKU 9266-R

Description

Overview

The DiabloSport Chevrolet, GMC (6.6) Computer Chip Programmer is a breakthrough tuning solution built around the industry-leading Trinity T2 on-dash tuner. Designed for 2020–2023 GM 6.6L L8T gas trucks, this complete kit finally gives owners the ability to unlock performance in a previously restricted platform. If you’ve been searching for a real path to more power on the L8T gas engine, this DiabloSport programmer delivers it in one comprehensive package.

Because these late-model GM ECMs ship locked from the factory, the kit ships with everything required to get you tuning. Along with the Trinity T2 tuner, you receive the required locksmith device and harness needed to unlock your truck’s ECM — no guesswork and no chasing down extra components to complete the job.

Key Benefits

At the heart of the kit is the Trinity T2, a color touch screen tuner that mounts on the dash for true in-cab monitoring. Load performance tunes to wake up your 6.6L gas truck, then keep an eye on everything that matters while you drive. The bright color display features an auto-dimming screen, so critical data stays readable in daylight and won’t overwhelm you at night.

The Trinity T2 is far more than a simple flash tool. It functions as a full-featured gauge monitor and diagnostic device, with data logging, alerts and records, and built-in performance tests so you can measure results and track your truck’s behavior over time. Video-capable operation and Wi-Fi updates keep the device current and versatile, while 5-volt data logging inputs and a digital speedometer round out the monitoring capabilities.

  • Complete kit: Trinity T2 on-dash tuner plus the required locksmith device and harness to unlock your ECM
  • Performance tunes engineered for 2020–2023 GM 6.6L L8T gas trucks
  • Color touch screen display with auto-dimming for clear in-cab monitoring
  • Data logging, alerts and records, and built-in performance tests
  • Wi-Fi updates and video-capable operation to keep the tuner current
  • 5-volt data logging inputs and digital speedometer
  • Accepts custom tunes from CMR for dialed-in, application-specific calibrations

Custom Tuning

For owners who want to go beyond the loaded performance tunes, the Trinity T2 supports custom tuning and accepts custom tunes from CMR. That means you can tailor calibrations to your specific setup and goals rather than settling for a one-size-fits-all approach.

Fitment & Compliance Notes

This gasoline-application programmer is built specifically for 2020–2023 GM 6.6L L8T gas trucks. Please note it is not 50-state legal and is not CARB (California) compliant. This product carries a California Proposition 65 warning. Confirm your application before ordering to ensure the correct fit for your truck.

Specification

Brand

Compatibility

2020-2023 Chevrolet Silverado 2500 HD Custom WT LT LTZ High Country : 401 & Cylinder: 8 & Block: V), 2020-2023 Chevrolet Silverado 3500 HD LTZ Base WT High Country LT : 401 & Cylinder: 8 & Block: V), 2020-2023 GMC Sierra 2500 HD SLT Denali AT4 SLE Base Pro : 401 & Cylinder: 8 & Block: V), 2020-2023 GMC Sierra 3500 HD Denali SLE AT4 SLT Base Pro : 401 & Cylinder: 8 & Block: V)

MPN

9266-R

Prop 65 Warning

Yes

Universal

No

Warning

California Proposition 65

AC Adapter

No

Speedometer

Yes

Data Logging

Yes

Sub Category

Engine Service

Color

Yes

Custom Tuning

Yes

Emission Code

7

Video Capable

Yes

Wi-Fi Updates

Yes

In Cab Monitoring

Yes

Performance Tests

Yes

Performance Tunes

Yes

Alerts and Records

Yes

Auto Dimming Screen

Yes

5 Volt Data Logging Inputs

Yes

CARB (California) Compliant

No